VecOps

A "std::vector"-like collection of values implementing handy operation to analyse them.

Classes
class	ROOT::VecOps::RVec< T >
	A "std::vector"-like collection of values implementing handy operation to analyse them. More...
class	ROOT::VecOps::RVecN< T, N >

Functions
template<typename T >
auto	ROOT::VecOps::All (const RVec< T > &v) -> decltype(v[0]==false)
	Return true if all of the elements equate to true, return false otherwise.
template<typename T >
auto	ROOT::VecOps::Any (const RVec< T > &v) -> decltype(v[0]==true)
	Return true if any of the elements equates to true, return false otherwise.
template<typename T >
std::size_t	ROOT::VecOps::ArgMax (const RVec< T > &v)
	Get the index of the greatest element of an RVec In case of multiple occurrences of the maximum values, the index corresponding to the first occurrence is returned.
template<typename T >
std::size_t	ROOT::VecOps::ArgMin (const RVec< T > &v)
	Get the index of the smallest element of an RVec In case of multiple occurrences of the minimum values, the index corresponding to the first occurrence is returned.
template<typename T >
RVec< typename RVec< T >::size_type >	ROOT::VecOps::Argsort (const RVec< T > &v)
	Return an RVec of indices that sort the input RVec.
template<typename T , typename Compare >
RVec< typename RVec< T >::size_type >	ROOT::VecOps::Argsort (const RVec< T > &v, Compare &&c)
	Return an RVec of indices that sort the input RVec based on a comparison function.
template<typename T , unsigned N>
size_t	ROOT::VecOps::CapacityInBytes (const RVecN< T, N > &X)
template<typename T >
RVec< RVec< typename RVec< T >::size_type > >	ROOT::VecOps::Combinations (const RVec< T > &v, const typename RVec< T >::size_type n)
	Return the indices that represent all unique combinations of the elements of a given RVec.
template<typename T1 , typename T2 >
RVec< RVec< typename RVec< T1 >::size_type > >	ROOT::VecOps::Combinations (const RVec< T1 > &v1, const RVec< T2 > &v2)
	Return the indices that represent all combinations of the elements of two RVecs.
RVec< RVec< std::size_t > >	ROOT::VecOps::Combinations (const std::size_t size1, const std::size_t size2)
	Return the indices that represent all combinations of the elements of two RVecs.
template<typename T0 , typename T1 , typename Common_t = typename std::common_type<T0, T1>::type>
RVec< Common_t >	ROOT::VecOps::Concatenate (const RVec< T0 > &v0, const RVec< T1 > &v1)
	Return the concatenation of two RVecs.
template<typename T , typename... Args_t>
RVec< T >	ROOT::VecOps::Construct (const RVec< Args_t > &... args)
	Build an RVec of objects starting from RVecs of input to their constructors.
template<typename T0 , typename T1 = T0, typename Common_t = typename std::common_type_t<T0, T1>>
RVec< Common_t >	ROOT::VecOps::DeltaPhi (const RVec< T0 > &v1, const RVec< T1 > &v2, const Common_t c=M_PI)
	Return the angle difference \(\Delta \phi\) in radians of two vectors.
template<typename T0 , typename T1 = T0, typename Common_t = typename std::common_type_t<T0, T1>>
RVec< Common_t >	ROOT::VecOps::DeltaPhi (const RVec< T0 > &v1, T1 v2, const Common_t c=M_PI)
	Return the angle difference \(\Delta \phi\) in radians of a vector and a scalar.
template<typename T0 , typename T1 = T0, typename Common_t = typename std::common_type_t<T0, T1>>
RVec< Common_t >	ROOT::VecOps::DeltaPhi (T0 v1, const RVec< T1 > &v2, const Common_t c=M_PI)
	Return the angle difference \(\Delta \phi\) in radians of a scalar and a vector.
template<typename T0 , typename T1 = T0, typename Common_t = std::common_type_t<T0, T1>>
Common_t	ROOT::VecOps::DeltaPhi (T0 v1, T1 v2, const Common_t c=M_PI)
	Return the angle difference \(\Delta \phi\) of two scalars.
template<typename T0 , typename T1 = T0, typename T2 = T0, typename T3 = T0, typename Common_t = std::common_type_t<T0, T1, T2, T3>>
RVec< Common_t >	ROOT::VecOps::DeltaR (const RVec< T0 > &eta1, const RVec< T1 > &eta2, const RVec< T2 > &phi1, const RVec< T3 > &phi2, const Common_t c=M_PI)
	Return the distance on the \(\eta\)- \(\phi\) plane ( \(\Delta R\)) from the collections eta1, eta2, phi1 and phi2.
template<typename T0 , typename T1 = T0, typename T2 = T0, typename T3 = T0, typename Common_t = std::common_type_t<T0, T1, T2, T3>>
Common_t	ROOT::VecOps::DeltaR (T0 eta1, T1 eta2, T2 phi1, T3 phi2, const Common_t c=M_PI)
	Return the distance on the \(\eta\)- \(\phi\) plane ( \(\Delta R\)) from the scalars eta1, eta2, phi1 and phi2.
template<typename T0 , typename T1 = T0, typename T2 = T0, typename T3 = T0, typename Common_t = std::common_type_t<T0, T1, T2, T3>>
RVec< Common_t >	ROOT::VecOps::DeltaR2 (const RVec< T0 > &eta1, const RVec< T1 > &eta2, const RVec< T2 > &phi1, const RVec< T3 > &phi2, const Common_t c=M_PI)
	Return the square of the distance on the \(\eta\)- \(\phi\) plane ( \(\Delta R\)) from the collections eta1, eta2, phi1 and phi2.
template<typename T , typename V >
auto	ROOT::VecOps::Dot (const RVec< T > &v0, const RVec< V > &v1) -> decltype(v0[0] *v1[0])
	Inner product.
template<typename T >
RVec< T >	ROOT::VecOps::Drop (const RVec< T > &v, RVec< typename RVec< T >::size_type > idxs)
	Return a copy of the container without the elements at the specified indices.
template<typename T >
RVec< typename RVec< T >::size_type >	ROOT::VecOps::Enumerate (const RVec< T > &v)
	For any Rvec v produce another RVec with entries starting from 0, and incrementing by 1 until a N = v.size() is reached.
template<typename T , typename F >
RVec< T >	ROOT::VecOps::Filter (const RVec< T > &v, F &&f)
	Create a new collection with the elements passing the filter expressed by the predicate.
template<typename T >
RVec< T >	ROOT::VecOps::Intersect (const RVec< T > &v1, const RVec< T > &v2, bool v2_is_sorted=false)
	Return the intersection of elements of two RVecs.
template<typename T0 , typename T1 = T0, typename T2 = T0, typename T3 = T0, typename Common_t = std::common_type_t<T0, T1, T2, T3>>
Common_t	ROOT::VecOps::InvariantMass (const RVec< T0 > &pt, const RVec< T1 > &eta, const RVec< T2 > &phi, const RVec< T3 > &mass)
	Return the invariant mass of multiple particles given the collections of the quantities transverse momentum (pt), rapidity (eta), azimuth (phi) and mass.
template<typename T0 , typename T1 = T0, typename T2 = T0, typename T3 = T0, typename T4 = T0, typename T5 = T0, typename T6 = T0, typename T7 = T0, typename Common_t = std::common_type_t<T0, T1, T2, T3, T4, T5, T6, T7>>
RVec< Common_t >	ROOT::VecOps::InvariantMasses (const RVec< T0 > &pt1, const RVec< T1 > &eta1, const RVec< T2 > &phi1, const RVec< T3 > &mass1, const RVec< T4 > &pt2, const RVec< T5 > &eta2, const RVec< T6 > &phi2, const RVec< T7 > &mass2)
	Return the invariant mass of two particles given the collections of the quantities transverse momentum (pt), rapidity (eta), azimuth (phi) and mass.
template<typename... Args>
auto	ROOT::VecOps::Map (Args &&... args)
	Create new collection applying a callable to the elements of the input collection.
template<typename T >
T	ROOT::VecOps::Max (const RVec< T > &v)
	Get the greatest element of an RVec.
template<typename T >
double	ROOT::VecOps::Mean (const RVec< T > &v)
	Get the mean of the elements of an RVec.
template<typename T , typename R = T>
R	ROOT::VecOps::Mean (const RVec< T > &v, const R zero)
	Get the mean of the elements of an RVec with custom initial value.
template<typename T >
T	ROOT::VecOps::Min (const RVec< T > &v)
	Get the smallest element of an RVec.
template<typename T >
RVec< typename RVec< T >::size_type >	ROOT::VecOps::Nonzero (const RVec< T > &v)
	Return the indices of the elements which are not zero.
template<class T >
std::ostream &	ROOT::VecOps::operator<< (std::ostream &os, const RVec< T > &v)
	Print a RVec at the prompt:
template<typename T >
T	ROOT::VecOps::Product (const RVec< T > &v, const T init=T(1))
	Return the product of the elements of the RVec.
RVec< long long int >	ROOT::VecOps::Range (long long int begin, long long int end, long long int stride)
	Allows for negative begin, end, and/or stride.
RVec< std::size_t >	ROOT::VecOps::Range (std::size_t begin, std::size_t end)
	Produce RVec with entries equal to begin, begin+1, ..., end-1.
RVec< std::size_t >	ROOT::VecOps::Range (std::size_t length)
	Produce RVec with entries starting from 0, and incrementing by 1 until a user-specified N is reached.
template<typename T >
RVec< T >	ROOT::VecOps::Reverse (const RVec< T > &v)
	Return copy of reversed vector.
template<typename T >
RVec< T >	ROOT::VecOps::Sort (const RVec< T > &v)
	Return copy of RVec with elements sorted in ascending order.
template<typename T , typename Compare >
RVec< T >	ROOT::VecOps::Sort (const RVec< T > &v, Compare &&c)
	Return copy of RVec with elements sorted based on a comparison operator.
template<typename T >
RVec< typename RVec< T >::size_type >	ROOT::VecOps::StableArgsort (const RVec< T > &v)
	Return an RVec of indices that sort the input RVec while keeping the order of equal elements.
template<typename T , typename Compare >
RVec< typename RVec< T >::size_type >	ROOT::VecOps::StableArgsort (const RVec< T > &v, Compare &&c)
	Return an RVec of indices that sort the input RVec based on a comparison function while keeping the order of equal elements.
template<typename T >
RVec< T >	ROOT::VecOps::StableSort (const RVec< T > &v)
	Return copy of RVec with elements sorted in ascending order while keeping the order of equal elements.
template<typename T , typename Compare >
RVec< T >	ROOT::VecOps::StableSort (const RVec< T > &v, Compare &&c)
	Return copy of RVec with elements sorted based on a comparison operator while keeping the order of equal elements.
template<typename T >
double	ROOT::VecOps::StdDev (const RVec< T > &v)
	Get the standard deviation of the elements of an RVec.
std::size_t	ROOT::VecOps::Sum (const RVec< bool > &v, std::size_t zero=0ul)
template<typename T >
T	ROOT::VecOps::Sum (const RVec< T > &v, const T zero=T(0))
	Sum elements of an RVec.
template<typename T >
void	ROOT::VecOps::swap (RVec< T > &lhs, RVec< T > &rhs)
template<typename T >
RVec< T >	ROOT::VecOps::Take (const RVec< T > &v, const int n)
	Return first n elements of an RVec if n > 0 and last n elements if n < 0.
template<typename T >
RVec< T >	ROOT::VecOps::Take (const RVec< T > &v, const int n, const T default_val)
	Return first n elements of an RVec if n > 0 and last n elements if n < 0.
template<typename T >
RVec< T >	ROOT::VecOps::Take (const RVec< T > &v, const RVec< typename RVec< T >::size_type > &i)
	Return elements of a vector at given indices.
template<typename T >
RVec< T >	ROOT::VecOps::Take (const RVec< T > &v, const RVec< typename RVec< T >::size_type > &i, const T default_val)
	Take version that defaults to (user-specified) output value if some index is out of range.
template<typename T >
double	ROOT::VecOps::Var (const RVec< T > &v)
	Get the variance of the elements of an RVec.
template<typename T >
RVec< T >	ROOT::VecOps::Where (const RVec< int > &c, const RVec< T > &v1, const RVec< T > &v2)
	Return the elements of v1 if the condition c is true and v2 if the condition c is false.
template<typename T >
RVec< T >	ROOT::VecOps::Where (const RVec< int > &c, const RVec< T > &v1, typename RVec< T >::value_type v2)
	Return the elements of v1 if the condition c is true and sets the value v2 if the condition c is false.
template<typename T >
RVec< T >	ROOT::VecOps::Where (const RVec< int > &c, T v1, T v2)
	Return a vector with the value v2 if the condition c is false and sets the value v1 if the condition c is true.
template<typename T >
RVec< T >	ROOT::VecOps::Where (const RVec< int > &c, typename RVec< T >::value_type v1, const RVec< T > &v2)
	Return the elements of v2 if the condition c is false and sets the value v1 if the condition c is true.

RVec Unary Arithmetic Operators
template<typename T >
RVec< T >	ROOT::VecOps::operator+ (const RVec< T > &v)
template<typename T >
RVec< T >	ROOT::VecOps::operator- (const RVec< T > &v)
template<typename T >
RVec< T >	ROOT::VecOps::operator~ (const RVec< T > &v)
template<typename T >
RVec< T >	ROOT::VecOps::operator! (const RVec< T > &v)
#define	RVEC_UNARY_OPERATOR(OP)

RVec Binary Arithmetic Operators
template<typename T0 , typename T1 >
auto	ROOT::VecOps::operator+ (const RVec< T0 > &v, const T1 &y) -> RVec< decltype(v[0]+y)>
template<typename T0 , typename T1 >
auto	ROOT::VecOps::operator+ (const T0 &x, const RVec< T1 > &v) -> RVec< decltype(x+v[0])>
template<typename T0 , typename T1 >
auto	ROOT::VecOps::operator+ (const RVec< T0 > &v0, const RVec< T1 > &v1) -> RVec< decltype(v0[0]+v1[0])>
template<typename T0 , typename T1 >
auto	ROOT::VecOps::operator- (const RVec< T0 > &v, const T1 &y) -> RVec< decltype(v[0] - y)>
template<typename T0 , typename T1 >
auto	ROOT::VecOps::operator- (const T0 &x, const RVec< T1 > &v) -> RVec< decltype(x - v[0])>
template<typename T0 , typename T1 >
auto	ROOT::VecOps::operator- (const RVec< T0 > &v0, const RVec< T1 > &v1) -> RVec< decltype(v0[0] - v1[0])>
template<typename T0 , typename T1 >
auto	ROOT::VecOps::operator* (const RVec< T0 > &v, const T1 &y) -> RVec< decltype(v[0] *y)>
template<typename T0 , typename T1 >
auto	ROOT::VecOps::operator* (const T0 &x, const RVec< T1 > &v) -> RVec< decltype(x *v[0])>
template<typename T0 , typename T1 >
auto	ROOT::VecOps::operator* (const RVec< T0 > &v0, const RVec< T1 > &v1) -> RVec< decltype(v0[0] *v1[0])>
template<typename T0 , typename T1 >
auto	ROOT::VecOps::operator/ (const RVec< T0 > &v, const T1 &y) -> RVec< decltype(v[0]/y)>
template<typename T0 , typename T1 >
auto	ROOT::VecOps::operator/ (const T0 &x, const RVec< T1 > &v) -> RVec< decltype(x/v[0])>
template<typename T0 , typename T1 >
auto	ROOT::VecOps::operator/ (const RVec< T0 > &v0, const RVec< T1 > &v1) -> RVec< decltype(v0[0]/v1[0])>
template<typename T0 , typename T1 >
auto	ROOT::VecOps::operator% (const RVec< T0 > &v, const T1 &y) -> RVec< decltype(v[0] % y)>
template<typename T0 , typename T1 >
auto	ROOT::VecOps::operator% (const T0 &x, const RVec< T1 > &v) -> RVec< decltype(x % v[0])>
template<typename T0 , typename T1 >
auto	ROOT::VecOps::operator% (const RVec< T0 > &v0, const RVec< T1 > &v1) -> RVec< decltype(v0[0] % v1[0])>
template<typename T0 , typename T1 >
auto	ROOT::VecOps::operator^ (const RVec< T0 > &v, const T1 &y) -> RVec< decltype(v[0] ^ y)>
template<typename T0 , typename T1 >
auto	ROOT::VecOps::operator^ (const T0 &x, const RVec< T1 > &v) -> RVec< decltype(x ^ v[0])>
template<typename T0 , typename T1 >
auto	ROOT::VecOps::operator^ (const RVec< T0 > &v0, const RVec< T1 > &v1) -> RVec< decltype(v0[0] ^ v1[0])>
template<typename T0 , typename T1 >
auto	ROOT::VecOps::operator| (const RVec< T0 > &v, const T1 &y) -> RVec< decltype(v[0]|y)>
template<typename T0 , typename T1 >
auto	ROOT::VecOps::operator| (const T0 &x, const RVec< T1 > &v) -> RVec< decltype(x|v[0])>
template<typename T0 , typename T1 >
auto	ROOT::VecOps::operator| (const RVec< T0 > &v0, const RVec< T1 > &v1) -> RVec< decltype(v0[0]|v1[0])>
template<typename T0 , typename T1 >
auto	ROOT::VecOps::operator& (const RVec< T0 > &v, const T1 &y) -> RVec< decltype(v[0] &y)>
template<typename T0 , typename T1 >
auto	ROOT::VecOps::operator& (const T0 &x, const RVec< T1 > &v) -> RVec< decltype(x &v[0])>
template<typename T0 , typename T1 >
auto	ROOT::VecOps::operator& (const RVec< T0 > &v0, const RVec< T1 > &v1) -> RVec< decltype(v0[0] &v1[0])>
#define	ERROR_MESSAGE(OP)    "Cannot call operator " #OP " on vectors of different sizes."
#define	RVEC_BINARY_OPERATOR(OP)

RVec Assignment Arithmetic Operators
template<typename T0 , typename T1 >
RVec< T0 > &	ROOT::VecOps::operator+= (RVec< T0 > &v, const T1 &y)
template<typename T0 , typename T1 >
RVec< T0 > &	ROOT::VecOps::operator+= (RVec< T0 > &v0, const RVec< T1 > &v1)
template<typename T0 , typename T1 >
RVec< T0 > &	ROOT::VecOps::operator-= (RVec< T0 > &v, const T1 &y)
template<typename T0 , typename T1 >
RVec< T0 > &	ROOT::VecOps::operator-= (RVec< T0 > &v0, const RVec< T1 > &v1)
template<typename T0 , typename T1 >
RVec< T0 > &	ROOT::VecOps::operator*= (RVec< T0 > &v, const T1 &y)
template<typename T0 , typename T1 >
RVec< T0 > &	ROOT::VecOps::operator*= (RVec< T0 > &v0, const RVec< T1 > &v1)
template<typename T0 , typename T1 >
RVec< T0 > &	ROOT::VecOps::operator/= (RVec< T0 > &v, const T1 &y)
template<typename T0 , typename T1 >
RVec< T0 > &	ROOT::VecOps::operator/= (RVec< T0 > &v0, const RVec< T1 > &v1)
template<typename T0 , typename T1 >
RVec< T0 > &	ROOT::VecOps::operator%= (RVec< T0 > &v, const T1 &y)
template<typename T0 , typename T1 >
RVec< T0 > &	ROOT::VecOps::operator%= (RVec< T0 > &v0, const RVec< T1 > &v1)
template<typename T0 , typename T1 >
RVec< T0 > &	ROOT::VecOps::operator^= (RVec< T0 > &v, const T1 &y)
template<typename T0 , typename T1 >
RVec< T0 > &	ROOT::VecOps::operator^= (RVec< T0 > &v0, const RVec< T1 > &v1)
template<typename T0 , typename T1 >
RVec< T0 > &	ROOT::VecOps::operator|= (RVec< T0 > &v, const T1 &y)
template<typename T0 , typename T1 >
RVec< T0 > &	ROOT::VecOps::operator|= (RVec< T0 > &v0, const RVec< T1 > &v1)
template<typename T0 , typename T1 >
RVec< T0 > &	ROOT::VecOps::operator&= (RVec< T0 > &v, const T1 &y)
template<typename T0 , typename T1 >
RVec< T0 > &	ROOT::VecOps::operator&= (RVec< T0 > &v0, const RVec< T1 > &v1)
template<typename T0 , typename T1 >
RVec< T0 > &	ROOT::VecOps::operator>>= (RVec< T0 > &v, const T1 &y)
template<typename T0 , typename T1 >
RVec< T0 > &	ROOT::VecOps::operator>>= (RVec< T0 > &v0, const RVec< T1 > &v1)
template<typename T0 , typename T1 >
RVec< T0 > &	ROOT::VecOps::operator<<= (RVec< T0 > &v, const T1 &y)
template<typename T0 , typename T1 >
RVec< T0 > &	ROOT::VecOps::operator<<= (RVec< T0 > &v0, const RVec< T1 > &v1)
#define	RVEC_ASSIGNMENT_OPERATOR(OP)

RVec Comparison and Logical Operators
template<typename T0 , typename T1 >
auto	ROOT::VecOps::operator< (const RVec< T0 > &v, const T1 &y) -> RVec< int >
template<typename T0 , typename T1 >
auto	ROOT::VecOps::operator< (const T0 &x, const RVec< T1 > &v) -> RVec< int >
template<typename T0 , typename T1 >
auto	ROOT::VecOps::operator< (const RVec< T0 > &v0, const RVec< T1 > &v1) -> RVec< int >
template<typename T0 , typename T1 >
auto	ROOT::VecOps::operator> (const RVec< T0 > &v, const T1 &y) -> RVec< int >
template<typename T0 , typename T1 >
auto	ROOT::VecOps::operator> (const T0 &x, const RVec< T1 > &v) -> RVec< int >
template<typename T0 , typename T1 >
auto	ROOT::VecOps::operator> (const RVec< T0 > &v0, const RVec< T1 > &v1) -> RVec< int >
template<typename T0 , typename T1 >
auto	ROOT::VecOps::operator== (const RVec< T0 > &v, const T1 &y) -> RVec< int >
template<typename T0 , typename T1 >
auto	ROOT::VecOps::operator== (const T0 &x, const RVec< T1 > &v) -> RVec< int >
template<typename T0 , typename T1 >
auto	ROOT::VecOps::operator== (const RVec< T0 > &v0, const RVec< T1 > &v1) -> RVec< int >
template<typename T0 , typename T1 >
auto	ROOT::VecOps::operator!= (const RVec< T0 > &v, const T1 &y) -> RVec< int >
template<typename T0 , typename T1 >
auto	ROOT::VecOps::operator!= (const T0 &x, const RVec< T1 > &v) -> RVec< int >
template<typename T0 , typename T1 >
auto	ROOT::VecOps::operator!= (const RVec< T0 > &v0, const RVec< T1 > &v1) -> RVec< int >
template<typename T0 , typename T1 >
auto	ROOT::VecOps::operator<= (const RVec< T0 > &v, const T1 &y) -> RVec< int >
template<typename T0 , typename T1 >
auto	ROOT::VecOps::operator<= (const T0 &x, const RVec< T1 > &v) -> RVec< int >
template<typename T0 , typename T1 >
auto	ROOT::VecOps::operator<= (const RVec< T0 > &v0, const RVec< T1 > &v1) -> RVec< int >
template<typename T0 , typename T1 >
auto	ROOT::VecOps::operator>= (const RVec< T0 > &v, const T1 &y) -> RVec< int >
template<typename T0 , typename T1 >
auto	ROOT::VecOps::operator>= (const T0 &x, const RVec< T1 > &v) -> RVec< int >
template<typename T0 , typename T1 >
auto	ROOT::VecOps::operator>= (const RVec< T0 > &v0, const RVec< T1 > &v1) -> RVec< int >
template<typename T0 , typename T1 >
auto	ROOT::VecOps::operator&& (const RVec< T0 > &v, const T1 &y) -> RVec< int >
template<typename T0 , typename T1 >
auto	ROOT::VecOps::operator&& (const T0 &x, const RVec< T1 > &v) -> RVec< int >
template<typename T0 , typename T1 >
auto	ROOT::VecOps::operator&& (const RVec< T0 > &v0, const RVec< T1 > &v1) -> RVec< int >
template<typename T0 , typename T1 >
auto	ROOT::VecOps::operator|| (const RVec< T0 > &v, const T1 &y) -> RVec< int >
template<typename T0 , typename T1 >
auto	ROOT::VecOps::operator|| (const T0 &x, const RVec< T1 > &v) -> RVec< int >
template<typename T0 , typename T1 >
auto	ROOT::VecOps::operator|| (const RVec< T0 > &v0, const RVec< T1 > &v1) -> RVec< int >
#define	RVEC_LOGICAL_OPERATOR(OP)

RVec Standard Mathematical Functions
template<typename T >
RVec< PromoteType< T > >	ROOT::VecOps::abs (const RVec< T > &v)
template<typename T0 , typename T1 >
RVec< PromoteTypes< T0, T1 > >	ROOT::VecOps::fdim (const T0 &x, const RVec< T1 > &v)
template<typename T0 , typename T1 >
RVec< PromoteTypes< T0, T1 > >	ROOT::VecOps::fdim (const RVec< T0 > &v, const T1 &y)
template<typename T0 , typename T1 >
RVec< PromoteTypes< T0, T1 > >	ROOT::VecOps::fdim (const RVec< T0 > &v0, const RVec< T1 > &v1)
template<typename T0 , typename T1 >
RVec< PromoteTypes< T0, T1 > >	ROOT::VecOps::fmod (const T0 &x, const RVec< T1 > &v)
template<typename T0 , typename T1 >
RVec< PromoteTypes< T0, T1 > >	ROOT::VecOps::fmod (const RVec< T0 > &v, const T1 &y)
template<typename T0 , typename T1 >
RVec< PromoteTypes< T0, T1 > >	ROOT::VecOps::fmod (const RVec< T0 > &v0, const RVec< T1 > &v1)
template<typename T0 , typename T1 >
RVec< PromoteTypes< T0, T1 > >	ROOT::VecOps::remainder (const T0 &x, const RVec< T1 > &v)
template<typename T0 , typename T1 >
RVec< PromoteTypes< T0, T1 > >	ROOT::VecOps::remainder (const RVec< T0 > &v, const T1 &y)
template<typename T0 , typename T1 >
RVec< PromoteTypes< T0, T1 > >	ROOT::VecOps::remainder (const RVec< T0 > &v0, const RVec< T1 > &v1)
template<typename T >
RVec< PromoteType< T > >	ROOT::VecOps::exp (const RVec< T > &v)
template<typename T >
RVec< PromoteType< T > >	ROOT::VecOps::exp2 (const RVec< T > &v)
template<typename T >
RVec< PromoteType< T > >	ROOT::VecOps::expm1 (const RVec< T > &v)
template<typename T >
RVec< PromoteType< T > >	ROOT::VecOps::log (const RVec< T > &v)
template<typename T >
RVec< PromoteType< T > >	ROOT::VecOps::log10 (const RVec< T > &v)
template<typename T >
RVec< PromoteType< T > >	ROOT::VecOps::log2 (const RVec< T > &v)
template<typename T >
RVec< PromoteType< T > >	ROOT::VecOps::log1p (const RVec< T > &v)
template<typename T0 , typename T1 >
RVec< PromoteTypes< T0, T1 > >	ROOT::VecOps::pow (const T0 &x, const RVec< T1 > &v)
template<typename T0 , typename T1 >
RVec< PromoteTypes< T0, T1 > >	ROOT::VecOps::pow (const RVec< T0 > &v, const T1 &y)
template<typename T0 , typename T1 >
RVec< PromoteTypes< T0, T1 > >	ROOT::VecOps::pow (const RVec< T0 > &v0, const RVec< T1 > &v1)
template<typename T >
RVec< PromoteType< T > >	ROOT::VecOps::sqrt (const RVec< T > &v)
template<typename T >
RVec< PromoteType< T > >	ROOT::VecOps::cbrt (const RVec< T > &v)
template<typename T0 , typename T1 >
RVec< PromoteTypes< T0, T1 > >	ROOT::VecOps::hypot (const T0 &x, const RVec< T1 > &v)
template<typename T0 , typename T1 >
RVec< PromoteTypes< T0, T1 > >	ROOT::VecOps::hypot (const RVec< T0 > &v, const T1 &y)
template<typename T0 , typename T1 >
RVec< PromoteTypes< T0, T1 > >	ROOT::VecOps::hypot (const RVec< T0 > &v0, const RVec< T1 > &v1)
template<typename T >
RVec< PromoteType< T > >	ROOT::VecOps::sin (const RVec< T > &v)
template<typename T >
RVec< PromoteType< T > >	ROOT::VecOps::cos (const RVec< T > &v)
template<typename T >
RVec< PromoteType< T > >	ROOT::VecOps::tan (const RVec< T > &v)
template<typename T >
RVec< PromoteType< T > >	ROOT::VecOps::asin (const RVec< T > &v)
template<typename T >
RVec< PromoteType< T > >	ROOT::VecOps::acos (const RVec< T > &v)
template<typename T >
RVec< PromoteType< T > >	ROOT::VecOps::atan (const RVec< T > &v)
template<typename T0 , typename T1 >
RVec< PromoteTypes< T0, T1 > >	ROOT::VecOps::atan2 (const T0 &x, const RVec< T1 > &v)
template<typename T0 , typename T1 >
RVec< PromoteTypes< T0, T1 > >	ROOT::VecOps::atan2 (const RVec< T0 > &v, const T1 &y)
template<typename T0 , typename T1 >
RVec< PromoteTypes< T0, T1 > >	ROOT::VecOps::atan2 (const RVec< T0 > &v0, const RVec< T1 > &v1)
template<typename T >
RVec< PromoteType< T > >	ROOT::VecOps::sinh (const RVec< T > &v)
template<typename T >
RVec< PromoteType< T > >	ROOT::VecOps::cosh (const RVec< T > &v)
template<typename T >
RVec< PromoteType< T > >	ROOT::VecOps::tanh (const RVec< T > &v)
template<typename T >
RVec< PromoteType< T > >	ROOT::VecOps::asinh (const RVec< T > &v)
template<typename T >
RVec< PromoteType< T > >	ROOT::VecOps::acosh (const RVec< T > &v)
template<typename T >
RVec< PromoteType< T > >	ROOT::VecOps::atanh (const RVec< T > &v)
template<typename T >
RVec< PromoteType< T > >	ROOT::VecOps::floor (const RVec< T > &v)
template<typename T >
RVec< PromoteType< T > >	ROOT::VecOps::ceil (const RVec< T > &v)
template<typename T >
RVec< PromoteType< T > >	ROOT::VecOps::trunc (const RVec< T > &v)
template<typename T >
RVec< PromoteType< T > >	ROOT::VecOps::round (const RVec< T > &v)
template<typename T >
RVec< PromoteType< T > >	ROOT::VecOps::lround (const RVec< T > &v)
template<typename T >
RVec< PromoteType< T > >	ROOT::VecOps::llround (const RVec< T > &v)
template<typename T >
RVec< PromoteType< T > >	ROOT::VecOps::erf (const RVec< T > &v)
template<typename T >
RVec< PromoteType< T > >	ROOT::VecOps::erfc (const RVec< T > &v)
template<typename T >
RVec< PromoteType< T > >	ROOT::VecOps::lgamma (const RVec< T > &v)
template<typename T >
RVec< PromoteType< T > >	ROOT::VecOps::tgamma (const RVec< T > &v)
#define	RVEC_UNARY_FUNCTION(NAME, FUNC)
#define	RVEC_BINARY_FUNCTION(NAME, FUNC)
#define	RVEC_STD_UNARY_FUNCTION(F)   RVEC_UNARY_FUNCTION(F, std::F)
#define	RVEC_STD_BINARY_FUNCTION(F)   RVEC_BINARY_FUNCTION(F, std::F)

Macro Definition Documentation

ERROR_MESSAGE

#define ERROR_MESSAGE

(

OP

)

"Cannot call operator " #OP " on vectors of different sizes."

Definition at line 1636 of file RVec.hxx.

RVEC_ASSIGNMENT_OPERATOR

#define RVEC_ASSIGNMENT_OPERATOR

(

OP

)

Value:

template <typename T0, typename T1>                                            \
RVec<T0>& operator OP(RVec<T0> &v, const T1 &y)                                \
{                                                                              \
   auto op = [&y](T0 &x) { return x OP y; };                                   \
   std::transform(v.begin(), v.end(), v.begin(), op);                          \
   return v;                                                                   \
}                                                                              \
                                                                               \
template <typename T0, typename T1>                                            \
RVec<T0>& operator OP(RVec<T0> &v0, const RVec<T1> &v1)                        \
{                                                                              \
   if (v0.size() != v1.size())                                                 \
      throw std::runtime_error(ERROR_MESSAGE(OP));                             \
                                                                               \
   auto op = [](T0 &x, const T1 &y) { return x OP y; };                        \
   std::transform(v0.begin(), v0.end(), v1.begin(), v0.begin(), op);           \
   return v0;                                                                  \
}                                                                              \

Definition at line 1687 of file RVec.hxx.

RVEC_BINARY_FUNCTION

#define RVEC_BINARY_FUNCTION	(		NAME,
			FUNC
	)

Value:

   template <typename T0, typename T1>                                         \
   RVec<PromoteTypes<T0, T1>> NAME(const T0 &x, const RVec<T1> &v)             \
   {                                                                           \
      RVec<PromoteTypes<T0, T1>> ret(v.size());                                \
      auto f = [&x](const T1 &y) { return FUNC(x, y); };                       \
      std::transform(v.begin(), v.end(), ret.begin(), f);                      \
      return ret;                                                              \
   }                                                                           \
                                                                               \
   template <typename T0, typename T1>                                         \
   RVec<PromoteTypes<T0, T1>> NAME(const RVec<T0> &v, const T1 &y)             \
   {                                                                           \
      RVec<PromoteTypes<T0, T1>> ret(v.size());                                \
      auto f = [&y](const T0 &x) { return FUNC(x, y); };                       \
      std::transform(v.begin(), v.end(), ret.begin(), f);                      \
      return ret;                                                              \
   }                                                                           \
                                                                               \
   template <typename T0, typename T1>                                         \
   RVec<PromoteTypes<T0, T1>> NAME(const RVec<T0> &v0, const RVec<T1> &v1)     \
   {                                                                           \
      if (v0.size() != v1.size())                                              \
         throw std::runtime_error(ERROR_MESSAGE(NAME));                        \
                                                                               \
      RVec<PromoteTypes<T0, T1>> ret(v0.size());                               \
      auto f = [](const T0 &x, const T1 &y) { return FUNC(x, y); };            \
      std::transform(v0.begin(), v0.end(), v1.begin(), ret.begin(), f);        \
      return ret;                                                              \
   }                                                                           \

Definition at line 1798 of file RVec.hxx.

RVEC_BINARY_OPERATOR

#define RVEC_BINARY_OPERATOR

(

OP

)

Definition at line 1639 of file RVec.hxx.

RVEC_LOGICAL_OPERATOR

#define RVEC_LOGICAL_OPERATOR

(

OP

)

Definition at line 1723 of file RVec.hxx.

RVEC_STD_BINARY_FUNCTION

#define RVEC_STD_BINARY_FUNCTION

(

F

)

RVEC_BINARY_FUNCTION(F, std::F)

Definition at line 1830 of file RVec.hxx.

RVEC_STD_UNARY_FUNCTION

#define RVEC_STD_UNARY_FUNCTION

(

F

)

RVEC_UNARY_FUNCTION(F, std::F)

Definition at line 1829 of file RVec.hxx.

RVEC_UNARY_FUNCTION

#define RVEC_UNARY_FUNCTION	(		NAME,
			FUNC
	)

Value:

   template <typename T>                                                       \
   RVec<PromoteType<T>> NAME(const RVec<T> &v)                                 \
   {                                                                           \
      RVec<PromoteType<T>> ret(v.size());                                      \
      auto f = [](const T &x) { return FUNC(x); };                             \
      std::transform(v.begin(), v.end(), ret.begin(), f);                      \
      return ret;                                                              \
   }

Definition at line 1788 of file RVec.hxx.

RVEC_UNARY_OPERATOR

#define RVEC_UNARY_OPERATOR

(

OP

)

Value:

template <typename T>                                                          \
RVec<T> operator OP(const RVec<T> &v)                                          \
{                                                                              \
   RVec<T> ret(v);                                                             \
   for (auto &x : ret)                                                         \
      x = OP x;                                                                \
return ret;                                                                    \
}                                                                              \

Definition at line 1616 of file RVec.hxx.

Function Documentation

abs()

template<typename T >

RVec< PromoteType< T > > ROOT::VecOps::abs

(

const RVec< T > &

v

)

Definition at line 1832 of file RVec.hxx.

acos()

template<typename T >

RVec< PromoteType< T > > ROOT::VecOps::acos

(

const RVec< T > &

v

)

Definition at line 1855 of file RVec.hxx.

acosh()

template<typename T >

RVec< PromoteType< T > > ROOT::VecOps::acosh

(

const RVec< T > &

v

)

Definition at line 1863 of file RVec.hxx.

All()

template<typename T >

auto ROOT::VecOps::All

(

const RVec< T > &

v

)

-> decltype(v[0] == false)

Return true if all of the elements equate to true, return false otherwise.

Example code, at the ROOT prompt:

using namespace ROOT::VecOps;
RVecI v {0, 1, 0};
auto allTrue = All(v);
allTrue
// (bool) false

Definition at line 2224 of file RVec.hxx.

Any()

template<typename T >

auto ROOT::VecOps::Any

(

const RVec< T > &

v

)

-> decltype(v[0] == true)

Return true if any of the elements equates to true, return false otherwise.

Example code, at the ROOT prompt:

using namespace ROOT::VecOps;
RVecI v {0, 1, 0};
auto anyTrue = Any(v);
anyTrue
// (bool) true

Definition at line 2205 of file RVec.hxx.

ArgMax()

template<typename T >

std::size_t ROOT::VecOps::ArgMax

(

const RVec< T > &

v

)

Get the index of the greatest element of an RVec In case of multiple occurrences of the maximum values, the index corresponding to the first occurrence is returned.

Example code, at the ROOT prompt:

using namespace ROOT::VecOps;
RVecF v {1.f, 2.f, 4.f};
auto v_argmax = ArgMax(v);
v_argmax
// (unsigned long) 2

Definition at line 2067 of file RVec.hxx.

ArgMin()

template<typename T >

std::size_t ROOT::VecOps::ArgMin

(

const RVec< T > &

v

)

Get the index of the smallest element of an RVec In case of multiple occurrences of the minimum values, the index corresponding to the first occurrence is returned.

Example code, at the ROOT prompt:

using namespace ROOT::VecOps;
RVecF v {1.f, 2.f, 4.f};
auto v_argmin = ArgMin(v);
v_argmin
// (unsigned long) 0

Definition at line 2085 of file RVec.hxx.

Argsort() [1/2]

template<typename T >

RVec< typename RVec< T >::size_type > ROOT::VecOps::Argsort

(

const RVec< T > &

v

)

Return an RVec of indices that sort the input RVec.

Example code, at the ROOT prompt:

using namespace ROOT::VecOps;
RVecD v {2., 3., 1.};
auto sortIndices = Argsort(v)
// (ROOT::VecOps::RVec<unsigned long> &) { 2, 0, 1 }
auto values = Take(v, sortIndices)
// (ROOT::VecOps::RVec<double> &) { 1.0000000, 2.0000000, 3.0000000 }

Definition at line 2250 of file RVec.hxx.

Argsort() [2/2]

template<typename T , typename Compare >

RVec< typename RVec< T >::size_type > ROOT::VecOps::Argsort	(	const RVec< T > &	v,
		Compare &&	c
	)

Return an RVec of indices that sort the input RVec based on a comparison function.

Example code, at the ROOT prompt:

using namespace ROOT::VecOps;
RVecD v {2., 3., 1.};
auto sortIndices = Argsort(v, [](double x, double y) {return x > y;})
// (ROOT::VecOps::RVec<unsigned long> &) { 1, 0, 2 }
auto values = Take(v, sortIndices)
// (ROOT::VecOps::RVec<double> &) { 3.0000000, 2.0000000, 1.0000000 }

Definition at line 2271 of file RVec.hxx.

asin()

template<typename T >

RVec< PromoteType< T > > ROOT::VecOps::asin

(

const RVec< T > &

v

)

Definition at line 1854 of file RVec.hxx.

asinh()

template<typename T >

RVec< PromoteType< T > > ROOT::VecOps::asinh

(

const RVec< T > &

v

)

Definition at line 1862 of file RVec.hxx.

atan()

template<typename T >

RVec< PromoteType< T > > ROOT::VecOps::atan

(

const RVec< T > &

v

)

Definition at line 1856 of file RVec.hxx.

atan2() [1/3]

template<typename T0 , typename T1 >

RVec< PromoteTypes< T0, T1 > > ROOT::VecOps::atan2	(	const RVec< T0 > &	v,
		const T1 &	y
	)

Definition at line 1857 of file RVec.hxx.

atan2() [2/3]

template<typename T0 , typename T1 >

RVec< PromoteTypes< T0, T1 > > ROOT::VecOps::atan2	(	const RVec< T0 > &	v0,
		const RVec< T1 > &	v1
	)

Definition at line 1857 of file RVec.hxx.

atan2() [3/3]

template<typename T0 , typename T1 >

RVec< PromoteTypes< T0, T1 > > ROOT::VecOps::atan2	(	const T0 &	x,
		const RVec< T1 > &	v
	)

Definition at line 1857 of file RVec.hxx.

atanh()

template<typename T >

RVec< PromoteType< T > > ROOT::VecOps::atanh

(

const RVec< T > &

v

)

Definition at line 1864 of file RVec.hxx.

CapacityInBytes()

template<typename T , unsigned N>

size_t ROOT::VecOps::CapacityInBytes ( const RVecN< T, N > &  X )

inline

Definition at line 1608 of file RVec.hxx.

cbrt()

template<typename T >

RVec< PromoteType< T > > ROOT::VecOps::cbrt

(

const RVec< T > &

v

)

Definition at line 1848 of file RVec.hxx.

ceil()

template<typename T >

RVec< PromoteType< T > > ROOT::VecOps::ceil

(

const RVec< T > &

v

)

Definition at line 1867 of file RVec.hxx.

Combinations() [1/3]

template<typename T >

RVec< RVec< typename RVec< T >::size_type > > ROOT::VecOps::Combinations	(	const RVec< T > &	v,
		const typename RVec< T >::size_type	n
	)

Return the indices that represent all unique combinations of the elements of a given RVec.

using namespace ROOT::VecOps;
RVecD v {1., 2., 3., 4.};
auto v_1 = Combinations(v, 1);
v_1
(ROOT::VecOps::RVec<ROOT::VecOps::RVec<unsigned long> > &) { { 0, 1, 2, 3 } }
auto v_2 = Combinations(v, 2);
v_2
(ROOT::VecOps::RVec<ROOT::VecOps::RVec<unsigned long> > &) { { 0, 0, 0, 1, 1, 2 }, { 1, 2, 3, 2, 3, 3 } }
auto v_3 = Combinations(v, 3);
v_3
(ROOT::VecOps::RVec<ROOT::VecOps::RVec<unsigned long> > &) { { 0, 0, 0, 1 }, { 1, 1, 2, 2 }, { 2, 3, 3, 3 } }
auto v_4 = Combinations(v, 4);
v_4
(ROOT::VecOps::RVec<ROOT::VecOps::RVec<unsigned long> > &) { { 0 }, { 1 }, { 2 }, { 3 } }

Definition at line 2663 of file RVec.hxx.

Combinations() [2/3]

template<typename T1 , typename T2 >

RVec< RVec< typename RVec< T1 >::size_type > > ROOT::VecOps::Combinations	(	const RVec< T1 > &	v1,
		const RVec< T2 > &	v2
	)

Return the indices that represent all combinations of the elements of two RVecs.

The type of the return value is an RVec of two RVecs containing indices.

Example code, at the ROOT prompt:

using namespace ROOT::VecOps;
RVecD v1 {1., 2., 3.};
RVecD v2 {-4., -5.};
auto comb_idx = Combinations(v1, v2);
comb_idx
// (ROOT::VecOps::RVec<ROOT::VecOps::RVec<unsigned long> > &) { { 0, 0, 1, 1, 2, 2 }, { 0, 1, 0, 1, 0, 1 } }

Definition at line 2638 of file RVec.hxx.

Combinations() [3/3]

RVec< RVec< std::size_t > > ROOT::VecOps::Combinations ( const std::size_t  size1, const std::size_t  size2  )

inline

Return the indices that represent all combinations of the elements of two RVecs.

The type of the return value is an RVec of two RVecs containing indices.

Example code, at the ROOT prompt:

using namespace ROOT::VecOps;
auto comb_idx = Combinations(3, 2);
comb_idx
// (ROOT::VecOps::RVec<ROOT::VecOps::RVec<unsigned long> > &) { { 0, 0, 1, 1, 2, 2 }, { 0, 1, 0, 1, 0, 1 } }

Definition at line 2606 of file RVec.hxx.

Concatenate()

template<typename T0 , typename T1 , typename Common_t = typename std::common_type<T0, T1>::type>

RVec< Common_t > ROOT::VecOps::Concatenate	(	const RVec< T0 > &	v0,
		const RVec< T1 > &	v1
	)

Return the concatenation of two RVecs.

Example code, at the ROOT prompt:

using namespace ROOT::VecOps;
RVecF rvf {0.f, 1.f, 2.f};
RVecI rvi {7, 8, 9};
Concatenate(rvf, rvi)
// (ROOT::VecOps::RVec<float>) { 0.00000f, 1.00000f, 2.00000f, 7.00000f, 8.00000f, 9.00000f }

Definition at line 2897 of file RVec.hxx.

Construct()

template<typename T , typename... Args_t>

RVec< T > ROOT::VecOps::Construct

(

const RVec< Args_t > &...

args

)

Build an RVec of objects starting from RVecs of input to their constructors.

Template Parameters

T	Type of the objects contained in the created RVec.
Args_t	Pack of types templating the input RVecs.

Parameters

[in]

args

The RVecs containing the values used to initialise the output objects.

Returns

The RVec of objects initialised with the input parameters.

Example code, at the ROOT prompt:

using namespace ROOT::VecOps;
RVecF pts = {15.5, 34.32, 12.95};
RVecF etas = {0.3, 2.2, 1.32};
RVecF phis = {0.1, 3.02, 2.2};
RVecF masses = {105.65, 105.65, 105.65};
auto fourVecs = Construct<ROOT::Math::PtEtaPhiMVector>(pts, etas, phis, masses);
cout << fourVecs << endl;
// { (15.5,0.3,0.1,105.65), (34.32,2.2,3.02,105.65), (12.95,1.32,2.2,105.65) }

Definition at line 3117 of file RVec.hxx.

cos()

template<typename T >

RVec< PromoteType< T > > ROOT::VecOps::cos

(

const RVec< T > &

v

)

Definition at line 1852 of file RVec.hxx.

cosh()

template<typename T >

RVec< PromoteType< T > > ROOT::VecOps::cosh

(

const RVec< T > &

v

)

Definition at line 1860 of file RVec.hxx.

DeltaPhi() [1/4]

template<typename T0 , typename T1 = T0, typename Common_t = typename std::common_type_t<T0, T1>>

RVec< Common_t > ROOT::VecOps::DeltaPhi	(	const RVec< T0 > &	v1,
		const RVec< T1 > &	v2,
		const Common_t	c = M_PI
	)

Return the angle difference \(\Delta \phi\) in radians of two vectors.

The function computes the closest angle from v1 to v2 with sign and is therefore in the range \([-\pi, \pi]\). The computation is done per default in radians \(c = \pi\) but can be switched to degrees \(c = 180\).

Definition at line 2934 of file RVec.hxx.

DeltaPhi() [2/4]

template<typename T0 , typename T1 = T0, typename Common_t = typename std::common_type_t<T0, T1>>

RVec< Common_t > ROOT::VecOps::DeltaPhi	(	const RVec< T0 > &	v1,
		T1	v2,
		const Common_t	c = M_PI
	)

Return the angle difference \(\Delta \phi\) in radians of a vector and a scalar.

The function computes the closest angle from v1 to v2 with sign and is therefore in the range \([-\pi, \pi]\). The computation is done per default in radians \(c = \pi\) but can be switched to degrees \(c = 180\).

Definition at line 2952 of file RVec.hxx.

DeltaPhi() [3/4]

template<typename T0 , typename T1 = T0, typename Common_t = typename std::common_type_t<T0, T1>>

RVec< Common_t > ROOT::VecOps::DeltaPhi	(	T0	v1,
		const RVec< T1 > &	v2,
		const Common_t	c = M_PI
	)

Return the angle difference \(\Delta \phi\) in radians of a scalar and a vector.

The function computes the closest angle from v1 to v2 with sign and is therefore in the range \([-\pi, \pi]\). The computation is done per default in radians \(c = \pi\) but can be switched to degrees \(c = 180\).

Definition at line 2970 of file RVec.hxx.

DeltaPhi() [4/4]

template<typename T0 , typename T1 = T0, typename Common_t = std::common_type_t<T0, T1>>

Common_t ROOT::VecOps::DeltaPhi	(	T0	v1,
		T1	v2,
		const Common_t	c = M_PI
	)

Return the angle difference \(\Delta \phi\) of two scalars.

The function computes the closest angle from v1 to v2 with sign and is therefore in the range \([-\pi, \pi]\). The computation is done per default in radians \(c = \pi\) but can be switched to degrees \(c = 180\).

Definition at line 2913 of file RVec.hxx.

DeltaR() [1/2]

template<typename T0 , typename T1 = T0, typename T2 = T0, typename T3 = T0, typename Common_t = std::common_type_t<T0, T1, T2, T3>>

RVec< Common_t > ROOT::VecOps::DeltaR	(	const RVec< T0 > &	eta1,
		const RVec< T1 > &	eta2,
		const RVec< T2 > &	phi1,
		const RVec< T3 > &	phi2,
		const Common_t	c = M_PI
	)

Return the distance on the \(\eta\)- \(\phi\) plane ( \(\Delta R\)) from the collections eta1, eta2, phi1 and phi2.

The function computes \(\Delta R = \sqrt{(\eta_1 - \eta_2)^2 + (\phi_1 - \phi_2)^2}\) of the given collections eta1, eta2, phi1 and phi2. The angle \(\phi\) can be set to radian or degrees using the optional argument c, see the documentation of the DeltaPhi helper.

Definition at line 3003 of file RVec.hxx.

DeltaR() [2/2]

template<typename T0 , typename T1 = T0, typename T2 = T0, typename T3 = T0, typename Common_t = std::common_type_t<T0, T1, T2, T3>>

Common_t ROOT::VecOps::DeltaR	(	T0	eta1,
		T1	eta2,
		T2	phi1,
		T3	phi2,
		const Common_t	c = M_PI
	)

Return the distance on the \(\eta\)- \(\phi\) plane ( \(\Delta R\)) from the scalars eta1, eta2, phi1 and phi2.

The function computes \(\Delta R = \sqrt{(\eta_1 - \eta_2)^2 + (\phi_1 - \phi_2)^2}\) of the given scalars eta1, eta2, phi1 and phi2. The angle \(\phi\) can be set to radian or degrees using the optional argument c, see the documentation of the DeltaPhi helper.

Definition at line 3016 of file RVec.hxx.

DeltaR2()

template<typename T0 , typename T1 = T0, typename T2 = T0, typename T3 = T0, typename Common_t = std::common_type_t<T0, T1, T2, T3>>

RVec< Common_t > ROOT::VecOps::DeltaR2	(	const RVec< T0 > &	eta1,
		const RVec< T1 > &	eta2,
		const RVec< T2 > &	phi1,
		const RVec< T3 > &	phi2,
		const Common_t	c = M_PI
	)

Return the square of the distance on the \(\eta\)- \(\phi\) plane ( \(\Delta R\)) from the collections eta1, eta2, phi1 and phi2.

The function computes \(\Delta R^2 = (\eta_1 - \eta_2)^2 + (\phi_1 - \phi_2)^2\) of the given collections eta1, eta2, phi1 and phi2. The angle \(\phi\) can be set to radian or degrees using the optional argument c, see the documentation of the DeltaPhi helper.

Definition at line 2989 of file RVec.hxx.

Dot()

template<typename T , typename V >

auto ROOT::VecOps::Dot	(	const RVec< T > &	v0,
		const RVec< V > &	v1
	)		-> decltype(v0[0] * v1[0])

Inner product.

Example code, at the ROOT prompt:

using namespace ROOT::VecOps;
RVec<float> v1 {1., 2., 3.};
RVec<float> v2 {4., 5., 6.};
auto v1_dot_v2 = Dot(v1, v2);
v1_dot_v2
// (float) 32.0000f

Definition at line 1923 of file RVec.hxx.

Drop()

template<typename T >

RVec< T > ROOT::VecOps::Drop	(	const RVec< T > &	v,
		RVec< typename RVec< T >::size_type >	idxs
	)

Return a copy of the container without the elements at the specified indices.

Duplicated and out-of-range indices in idxs are ignored.

Definition at line 2448 of file RVec.hxx.

Enumerate()

template<typename T >

RVec< typename RVec< T >::size_type > ROOT::VecOps::Enumerate

(

const RVec< T > &

v

)

For any Rvec v produce another RVec with entries starting from 0, and incrementing by 1 until a N = v.size() is reached.

Example code, at the ROOT prompt:

using namespace ROOT::VecOps;
RVecF v = {1., 2., 3.};
cout << Enumerate(v1) << "\n";
// { 0, 1, 2 }

Definition at line 3137 of file RVec.hxx.

erf()

template<typename T >

RVec< PromoteType< T > > ROOT::VecOps::erf

(

const RVec< T > &

v

)

Definition at line 1873 of file RVec.hxx.

erfc()

template<typename T >

RVec< PromoteType< T > > ROOT::VecOps::erfc

(

const RVec< T > &

v

)

Definition at line 1874 of file RVec.hxx.

exp()

template<typename T >

RVec< PromoteType< T > > ROOT::VecOps::exp

(

const RVec< T > &

v

)

Definition at line 1837 of file RVec.hxx.

exp2()

template<typename T >

RVec< PromoteType< T > > ROOT::VecOps::exp2

(

const RVec< T > &

v

)

Definition at line 1838 of file RVec.hxx.

expm1()

template<typename T >

RVec< PromoteType< T > > ROOT::VecOps::expm1

(

const RVec< T > &

v

)

Definition at line 1839 of file RVec.hxx.

fdim() [1/3]

template<typename T0 , typename T1 >

RVec< PromoteTypes< T0, T1 > > ROOT::VecOps::fdim	(	const RVec< T0 > &	v,
		const T1 &	y
	)

Definition at line 1833 of file RVec.hxx.

fdim() [2/3]

template<typename T0 , typename T1 >

RVec< PromoteTypes< T0, T1 > > ROOT::VecOps::fdim	(	const RVec< T0 > &	v0,
		const RVec< T1 > &	v1
	)

Definition at line 1833 of file RVec.hxx.

fdim() [3/3]

template<typename T0 , typename T1 >

RVec< PromoteTypes< T0, T1 > > ROOT::VecOps::fdim	(	const T0 &	x,
		const RVec< T1 > &	v
	)

Definition at line 1833 of file RVec.hxx.

Filter()

template<typename T , typename F >

RVec< T > ROOT::VecOps::Filter	(	const RVec< T > &	v,
		F &&	f
	)

Create a new collection with the elements passing the filter expressed by the predicate.

Example code, at the ROOT prompt:

using namespace ROOT::VecOps;
RVecI v {1, 2, 4};
auto v_even = Filter(v, [](int i){return 0 == i%2;});
v_even
// (ROOT::VecOps::RVec<int> &) { 2, 4 }

Definition at line 2182 of file RVec.hxx.

floor()

template<typename T >

RVec< PromoteType< T > > ROOT::VecOps::floor

(

const RVec< T > &

v

)

Definition at line 1866 of file RVec.hxx.

fmod() [1/3]

template<typename T0 , typename T1 >

RVec< PromoteTypes< T0, T1 > > ROOT::VecOps::fmod	(	const RVec< T0 > &	v,
		const T1 &	y
	)

Definition at line 1834 of file RVec.hxx.

fmod() [2/3]

template<typename T0 , typename T1 >

RVec< PromoteTypes< T0, T1 > > ROOT::VecOps::fmod	(	const RVec< T0 > &	v0,
		const RVec< T1 > &	v1
	)

Definition at line 1834 of file RVec.hxx.

fmod() [3/3]

template<typename T0 , typename T1 >

RVec< PromoteTypes< T0, T1 > > ROOT::VecOps::fmod	(	const T0 &	x,
		const RVec< T1 > &	v
	)

Definition at line 1834 of file RVec.hxx.

hypot() [1/3]

template<typename T0 , typename T1 >

RVec< PromoteTypes< T0, T1 > > ROOT::VecOps::hypot	(	const RVec< T0 > &	v,
		const T1 &	y
	)

Definition at line 1849 of file RVec.hxx.

hypot() [2/3]

template<typename T0 , typename T1 >

RVec< PromoteTypes< T0, T1 > > ROOT::VecOps::hypot	(	const RVec< T0 > &	v0,
		const RVec< T1 > &	v1
	)

Definition at line 1849 of file RVec.hxx.

hypot() [3/3]

template<typename T0 , typename T1 >

RVec< PromoteTypes< T0, T1 > > ROOT::VecOps::hypot	(	const T0 &	x,
		const RVec< T1 > &	v
	)

Definition at line 1849 of file RVec.hxx.

Intersect()

template<typename T >

RVec< T > ROOT::VecOps::Intersect	(	const RVec< T > &	v1,
		const RVec< T > &	v2,
		bool	v2_is_sorted = false
	)

Return the intersection of elements of two RVecs.

Each element of v1 is looked up in v2 and added to the returned vector if found. Following, the order of v1 is preserved. If v2 is already sorted, the optional argument v2_is_sorted can be used to toggle of the internal sorting step, therewith optimising runtime.

Example code, at the ROOT prompt:

using namespace ROOT::VecOps;
RVecD v1 {1., 2., 3.};
RVecD v2 {-4., -5., 2., 1.};
auto v1_intersect_v2 = Intersect(v1, v2);
v1_intersect_v2
// (ROOT::VecOps::RVec<double> &) { 1.0000000, 2.0000000 }

Definition at line 2758 of file RVec.hxx.

InvariantMass()

template<typename T0 , typename T1 = T0, typename T2 = T0, typename T3 = T0, typename Common_t = std::common_type_t<T0, T1, T2, T3>>

Common_t ROOT::VecOps::InvariantMass	(	const RVec< T0 > &	pt,
		const RVec< T1 > &	eta,
		const RVec< T2 > &	phi,
		const RVec< T3 > &	mass
	)

Return the invariant mass of multiple particles given the collections of the quantities transverse momentum (pt), rapidity (eta), azimuth (phi) and mass.

The function computes the invariant mass of multiple particles with the four-vectors (pt, eta, phi, mass).

Definition at line 3071 of file RVec.hxx.

InvariantMasses()

template<typename T0 , typename T1 = T0, typename T2 = T0, typename T3 = T0, typename T4 = T0, typename T5 = T0, typename T6 = T0, typename T7 = T0, typename Common_t = std::common_type_t<T0, T1, T2, T3, T4, T5, T6, T7>>

RVec< Common_t > ROOT::VecOps::InvariantMasses	(	const RVec< T0 > &	pt1,
		const RVec< T1 > &	eta1,
		const RVec< T2 > &	phi1,
		const RVec< T3 > &	mass1,
		const RVec< T4 > &	pt2,
		const RVec< T5 > &	eta2,
		const RVec< T6 > &	phi2,
		const RVec< T7 > &	mass2
	)

Return the invariant mass of two particles given the collections of the quantities transverse momentum (pt), rapidity (eta), azimuth (phi) and mass.

The function computes the invariant mass of two particles with the four-vectors (pt1, eta2, phi1, mass1) and (pt2, eta2, phi2, mass2).

Definition at line 3029 of file RVec.hxx.

lgamma()

template<typename T >

RVec< PromoteType< T > > ROOT::VecOps::lgamma

(

const RVec< T > &

v

)

Definition at line 1875 of file RVec.hxx.

llround()

template<typename T >

RVec< PromoteType< T > > ROOT::VecOps::llround

(

const RVec< T > &

v

)

Definition at line 1871 of file RVec.hxx.

log()

template<typename T >

RVec< PromoteType< T > > ROOT::VecOps::log

(

const RVec< T > &

v

)

Definition at line 1841 of file RVec.hxx.

log10()

template<typename T >

RVec< PromoteType< T > > ROOT::VecOps::log10

(

const RVec< T > &

v

)

Definition at line 1842 of file RVec.hxx.

log1p()

template<typename T >

RVec< PromoteType< T > > ROOT::VecOps::log1p

(

const RVec< T > &

v

)

Definition at line 1844 of file RVec.hxx.

log2()

template<typename T >

RVec< PromoteType< T > > ROOT::VecOps::log2

(

const RVec< T > &

v

)

Definition at line 1843 of file RVec.hxx.

lround()

template<typename T >

RVec< PromoteType< T > > ROOT::VecOps::lround

(

const RVec< T > &

v

)

Definition at line 1870 of file RVec.hxx.

Map()

template<typename... Args>

auto ROOT::VecOps::Map

(

Args &&...

args

)

Create new collection applying a callable to the elements of the input collection.

Example code, at the ROOT prompt:

using namespace ROOT::VecOps;
RVecF v {1.f, 2.f, 4.f};
auto v_square = Map(v, [](float f){return f* 2.f;});
v_square
// (ROOT::VecOps::RVec<float> &) { 2.00000f, 4.00000f, 8.00000f }
 
RVecF x({1.f, 2.f, 3.f});
RVecF y({4.f, 5.f, 6.f});
RVecF z({7.f, 8.f, 9.f});
auto mod = [](float x, float y, float z) { return sqrt(x * x + y * y + z * z); };
auto v_mod = Map(x, y, z, mod);
v_mod
// (ROOT::VecOps::RVec<float> &) { 8.12404f, 9.64365f, 11.2250f }

Definition at line 2150 of file RVec.hxx.

Max()

template<typename T >

T ROOT::VecOps::Max

(

const RVec< T > &

v

)

Get the greatest element of an RVec.

Example code, at the ROOT prompt:

using namespace ROOT::VecOps;
RVecF v {1.f, 2.f, 4.f};
auto v_max = Max(v);
v_max
(float) 4.00000f

Definition at line 2033 of file RVec.hxx.

Mean() [1/2]

template<typename T >

double ROOT::VecOps::Mean

(

const RVec< T > &

v

)

Get the mean of the elements of an RVec.

The return type is a double precision floating point number.

Example code, at the ROOT prompt:

using namespace ROOT::VecOps;
RVecF v {1.f, 2.f, 4.f};
auto v_mean = Mean(v);
v_mean
// (double) 2.3333333

Definition at line 1984 of file RVec.hxx.

Mean() [2/2]

template<typename T , typename R = T>

R ROOT::VecOps::Mean	(	const RVec< T > &	v,
		const R	zero
	)

Get the mean of the elements of an RVec with custom initial value.

The return type will be deduced from the zero parameter

Example code, at the ROOT prompt:

using namespace ROOT::VecOps;
RVecF v {1.f, 2.f, 4.f};
auto v_mean_f = Mean(v, 0.f);
v_mean_f
// (float) 2.33333f
auto v_mean_d = Mean(v, 0.);
v_mean_d
// (double) 2.3333333

using namespace ROOT::VecOps;
const ROOT::Math::PtEtaPhiMVector lv0 {15.5f, .3f, .1f, 105.65f},
  lv1 {34.32f, 2.2f, 3.02f, 105.65f},
  lv2 {12.95f, 1.32f, 2.2f, 105.65f};
RVec<ROOT::Math::PtEtaPhiMVector> v {lv0, lv1, lv2};
auto v_mean_lv = Mean(v, ROOT::Math::PtEtaPhiMVector());
v_mean_lv
// (ROOT::Math::LorentzVector<ROOT::Math::PtEtaPhiM4D<double> > &) (10.283,2.46534,2.58947,120.361)

Definition at line 2016 of file RVec.hxx.

Min()

template<typename T >

T ROOT::VecOps::Min

(

const RVec< T > &

v

)

Get the smallest element of an RVec.

Example code, at the ROOT prompt:

using namespace ROOT::VecOps;
RVecF v {1.f, 2.f, 4.f};
auto v_min = Min(v);
v_min
(float) 1.00000f

Definition at line 2049 of file RVec.hxx.

Nonzero()

template<typename T >

RVec< typename RVec< T >::size_type > ROOT::VecOps::Nonzero

(

const RVec< T > &

v

)

Return the indices of the elements which are not zero.

Example code, at the ROOT prompt:

using namespace ROOT::VecOps;
RVecD v {2., 0., 3., 0., 1.};
auto nonzero_idx = Nonzero(v);
nonzero_idx
// (ROOT::VecOps::RVec<unsigned long> &) { 0, 2, 4 }

Definition at line 2727 of file RVec.hxx.

operator!()

template<typename T >

RVec< T > ROOT::VecOps::operator!

(

const RVec< T > &

v

)

Definition at line 1629 of file RVec.hxx.

operator!=() [1/3]

template<typename T0 , typename T1 >

auto ROOT::VecOps::operator!=	(	const RVec< T0 > &	v,
		const T1 &	y
	)		-> RVec<int>

Definition at line 1760 of file RVec.hxx.

operator!=() [2/3]

template<typename T0 , typename T1 >

auto ROOT::VecOps::operator!=	(	const RVec< T0 > &	v0,
		const RVec< T1 > &	v1
	)		-> RVec<int>

Definition at line 1760 of file RVec.hxx.

operator!=() [3/3]

template<typename T0 , typename T1 >

auto ROOT::VecOps::operator!=	(	const T0 &	x,
		const RVec< T1 > &	v
	)		-> RVec<int>

Definition at line 1760 of file RVec.hxx.

operator%() [1/3]

template<typename T0 , typename T1 >

auto ROOT::VecOps::operator%	(	const RVec< T0 > &	v,
		const T1 &	y
	)		-> RVec<decltype(v[0] % y)>

Definition at line 1677 of file RVec.hxx.

operator%() [2/3]

template<typename T0 , typename T1 >

auto ROOT::VecOps::operator%	(	const RVec< T0 > &	v0,
		const RVec< T1 > &	v1
	)		-> RVec<decltype(v0[0] % v1[0])>

Definition at line 1677 of file RVec.hxx.

operator%() [3/3]

template<typename T0 , typename T1 >

auto ROOT::VecOps::operator%	(	const T0 &	x,
		const RVec< T1 > &	v
	)		-> RVec<decltype(x % v[0])>

Definition at line 1677 of file RVec.hxx.

operator%=() [1/2]

template<typename T0 , typename T1 >

RVec< T0 > & ROOT::VecOps::operator%=	(	RVec< T0 > &	v,
		const T1 &	y
	)

Definition at line 1711 of file RVec.hxx.

operator%=() [2/2]

template<typename T0 , typename T1 >

RVec< T0 > & ROOT::VecOps::operator%=	(	RVec< T0 > &	v0,
		const RVec< T1 > &	v1
	)

Definition at line 1711 of file RVec.hxx.

operator&() [1/3]

template<typename T0 , typename T1 >

auto ROOT::VecOps::operator&	(	const RVec< T0 > &	v,
		const T1 &	y
	)		-> RVec<decltype(v[0] & y)>

Definition at line 1680 of file RVec.hxx.

operator&() [2/3]

template<typename T0 , typename T1 >

auto ROOT::VecOps::operator&	(	const RVec< T0 > &	v0,
		const RVec< T1 > &	v1
	)		-> RVec<decltype(v0[0] & v1[0])>

Definition at line 1680 of file RVec.hxx.

operator&() [3/3]

template<typename T0 , typename T1 >

auto ROOT::VecOps::operator&	(	const T0 &	x,
		const RVec< T1 > &	v
	)		-> RVec<decltype(x & v[0])>

Definition at line 1680 of file RVec.hxx.

operator&&() [1/3]

template<typename T0 , typename T1 >

auto ROOT::VecOps::operator&&	(	const RVec< T0 > &	v,
		const T1 &	y
	)		-> RVec<int>

Definition at line 1763 of file RVec.hxx.

operator&&() [2/3]

template<typename T0 , typename T1 >

auto ROOT::VecOps::operator&&	(	const RVec< T0 > &	v0,
		const RVec< T1 > &	v1
	)		-> RVec<int>

Definition at line 1763 of file RVec.hxx.

operator&&() [3/3]

template<typename T0 , typename T1 >

auto ROOT::VecOps::operator&&	(	const T0 &	x,
		const RVec< T1 > &	v
	)		-> RVec<int>

Definition at line 1763 of file RVec.hxx.

operator&=() [1/2]

template<typename T0 , typename T1 >

RVec< T0 > & ROOT::VecOps::operator&=	(	RVec< T0 > &	v,
		const T1 &	y
	)

Definition at line 1714 of file RVec.hxx.

operator&=() [2/2]

template<typename T0 , typename T1 >

RVec< T0 > & ROOT::VecOps::operator&=	(	RVec< T0 > &	v0,
		const RVec< T1 > &	v1
	)

Definition at line 1714 of file RVec.hxx.

operator*() [1/3]

template<typename T0 , typename T1 >

auto ROOT::VecOps::operator*	(	const RVec< T0 > &	v,
		const T1 &	y
	)		-> RVec<decltype(v[0] * y)>

Definition at line 1675 of file RVec.hxx.

operator*() [2/3]

template<typename T0 , typename T1 >

auto ROOT::VecOps::operator*	(	const RVec< T0 > &	v0,
		const RVec< T1 > &	v1
	)		-> RVec<decltype(v0[0] * v1[0])>

Definition at line 1675 of file RVec.hxx.

operator*() [3/3]

template<typename T0 , typename T1 >

auto ROOT::VecOps::operator*	(	const T0 &	x,
		const RVec< T1 > &	v
	)		-> RVec<decltype(x * v[0])>

Definition at line 1675 of file RVec.hxx.

operator*=() [1/2]

template<typename T0 , typename T1 >

RVec< T0 > & ROOT::VecOps::operator*=	(	RVec< T0 > &	v,
		const T1 &	y
	)

Definition at line 1709 of file RVec.hxx.

operator*=() [2/2]

template<typename T0 , typename T1 >

RVec< T0 > & ROOT::VecOps::operator*=	(	RVec< T0 > &	v0,
		const RVec< T1 > &	v1
	)

Definition at line 1709 of file RVec.hxx.

operator+() [1/4]

template<typename T >

RVec< T > ROOT::VecOps::operator+

(

const RVec< T > &

v

)

Definition at line 1626 of file RVec.hxx.

operator+() [2/4]

template<typename T0 , typename T1 >

auto ROOT::VecOps::operator+	(	const RVec< T0 > &	v,
		const T1 &	y
	)		-> RVec<decltype(v[0] + y)>

Definition at line 1673 of file RVec.hxx.

operator+() [3/4]

template<typename T0 , typename T1 >

auto ROOT::VecOps::operator+	(	const RVec< T0 > &	v0,
		const RVec< T1 > &	v1
	)		-> RVec<decltype(v0[0] + v1[0])>

Definition at line 1673 of file RVec.hxx.

operator+() [4/4]

template<typename T0 , typename T1 >

auto ROOT::VecOps::operator+	(	const T0 &	x,
		const RVec< T1 > &	v
	)		-> RVec<decltype(x + v[0])>

Definition at line 1673 of file RVec.hxx.

operator+=() [1/2]

template<typename T0 , typename T1 >

RVec< T0 > & ROOT::VecOps::operator+=	(	RVec< T0 > &	v,
		const T1 &	y
	)

Definition at line 1707 of file RVec.hxx.

operator+=() [2/2]

template<typename T0 , typename T1 >

RVec< T0 > & ROOT::VecOps::operator+=	(	RVec< T0 > &	v0,
		const RVec< T1 > &	v1
	)

Definition at line 1707 of file RVec.hxx.

operator-() [1/4]

template<typename T >

RVec< T > ROOT::VecOps::operator-

(

const RVec< T > &

v

)

Definition at line 1627 of file RVec.hxx.

operator-() [2/4]

template<typename T0 , typename T1 >

auto ROOT::VecOps::operator-	(	const RVec< T0 > &	v,
		const T1 &	y
	)		-> RVec<decltype(v[0] - y)>

Definition at line 1674 of file RVec.hxx.

operator-() [3/4]

template<typename T0 , typename T1 >

auto ROOT::VecOps::operator-	(	const RVec< T0 > &	v0,
		const RVec< T1 > &	v1
	)		-> RVec<decltype(v0[0] - v1[0])>

Definition at line 1674 of file RVec.hxx.

operator-() [4/4]

template<typename T0 , typename T1 >

auto ROOT::VecOps::operator-	(	const T0 &	x,
		const RVec< T1 > &	v
	)		-> RVec<decltype(x - v[0])>

Definition at line 1674 of file RVec.hxx.

operator-=() [1/2]

template<typename T0 , typename T1 >

RVec< T0 > & ROOT::VecOps::operator-=	(	RVec< T0 > &	v,
		const T1 &	y
	)

Definition at line 1708 of file RVec.hxx.

operator-=() [2/2]

template<typename T0 , typename T1 >

RVec< T0 > & ROOT::VecOps::operator-=	(	RVec< T0 > &	v0,
		const RVec< T1 > &	v1
	)

Definition at line 1708 of file RVec.hxx.

operator/() [1/3]

template<typename T0 , typename T1 >

auto ROOT::VecOps::operator/	(	const RVec< T0 > &	v,
		const T1 &	y
	)		-> RVec<decltype(v[0] / y)>

Definition at line 1676 of file RVec.hxx.

operator/() [2/3]

template<typename T0 , typename T1 >

auto ROOT::VecOps::operator/	(	const RVec< T0 > &	v0,
		const RVec< T1 > &	v1
	)		-> RVec<decltype(v0[0] / v1[0])>

Definition at line 1676 of file RVec.hxx.

operator/() [3/3]

template<typename T0 , typename T1 >

auto ROOT::VecOps::operator/	(	const T0 &	x,
		const RVec< T1 > &	v
	)		-> RVec<decltype(x / v[0])>

Definition at line 1676 of file RVec.hxx.

operator/=() [1/2]

template<typename T0 , typename T1 >

RVec< T0 > & ROOT::VecOps::operator/=	(	RVec< T0 > &	v,
		const T1 &	y
	)

Definition at line 1710 of file RVec.hxx.

operator/=() [2/2]

template<typename T0 , typename T1 >

RVec< T0 > & ROOT::VecOps::operator/=	(	RVec< T0 > &	v0,
		const RVec< T1 > &	v1
	)

Definition at line 1710 of file RVec.hxx.

operator<() [1/3]

template<typename T0 , typename T1 >

auto ROOT::VecOps::operator<	(	const RVec< T0 > &	v,
		const T1 &	y
	)		-> RVec<int>

Definition at line 1757 of file RVec.hxx.

operator<() [2/3]

template<typename T0 , typename T1 >

auto ROOT::VecOps::operator<	(	const RVec< T0 > &	v0,
		const RVec< T1 > &	v1
	)		-> RVec<int>

Definition at line 1757 of file RVec.hxx.

operator<() [3/3]

template<typename T0 , typename T1 >

auto ROOT::VecOps::operator<	(	const T0 &	x,
		const RVec< T1 > &	v
	)		-> RVec<int>

Definition at line 1757 of file RVec.hxx.

operator<<()

template<class T >

std::ostream & ROOT::VecOps::operator<<	(	std::ostream &	os,
		const RVec< T > &	v
	)

Print a RVec at the prompt:

Definition at line 3218 of file RVec.hxx.

operator<<=() [1/2]

template<typename T0 , typename T1 >

RVec< T0 > & ROOT::VecOps::operator<<=	(	RVec< T0 > &	v,
		const T1 &	y
	)

Definition at line 1715 of file RVec.hxx.

operator<<=() [2/2]

template<typename T0 , typename T1 >

RVec< T0 > & ROOT::VecOps::operator<<=	(	RVec< T0 > &	v0,
		const RVec< T1 > &	v1
	)

Definition at line 1715 of file RVec.hxx.

operator<=() [1/3]

template<typename T0 , typename T1 >

auto ROOT::VecOps::operator<=	(	const RVec< T0 > &	v,
		const T1 &	y
	)		-> RVec<int>

Definition at line 1761 of file RVec.hxx.

operator<=() [2/3]

template<typename T0 , typename T1 >

auto ROOT::VecOps::operator<=	(	const RVec< T0 > &	v0,
		const RVec< T1 > &	v1
	)		-> RVec<int>

Definition at line 1761 of file RVec.hxx.

operator<=() [3/3]

template<typename T0 , typename T1 >

auto ROOT::VecOps::operator<=	(	const T0 &	x,
		const RVec< T1 > &	v
	)		-> RVec<int>

Definition at line 1761 of file RVec.hxx.

operator==() [1/3]

template<typename T0 , typename T1 >

auto ROOT::VecOps::operator==	(	const RVec< T0 > &	v,
		const T1 &	y
	)		-> RVec<int>

Definition at line 1759 of file RVec.hxx.

operator==() [2/3]

template<typename T0 , typename T1 >

auto ROOT::VecOps::operator==	(	const RVec< T0 > &	v0,
		const RVec< T1 > &	v1
	)		-> RVec<int>

Definition at line 1759 of file RVec.hxx.

operator==() [3/3]

template<typename T0 , typename T1 >

auto ROOT::VecOps::operator==	(	const T0 &	x,
		const RVec< T1 > &	v
	)		-> RVec<int>

Definition at line 1759 of file RVec.hxx.

operator>() [1/3]

template<typename T0 , typename T1 >

auto ROOT::VecOps::operator>	(	const RVec< T0 > &	v,
		const T1 &	y
	)		-> RVec<int>

Definition at line 1758 of file RVec.hxx.

operator>() [2/3]

template<typename T0 , typename T1 >

auto ROOT::VecOps::operator>	(	const RVec< T0 > &	v0,
		const RVec< T1 > &	v1
	)		-> RVec<int>

Definition at line 1758 of file RVec.hxx.

operator>() [3/3]

template<typename T0 , typename T1 >

auto ROOT::VecOps::operator>	(	const T0 &	x,
		const RVec< T1 > &	v
	)		-> RVec<int>

Definition at line 1758 of file RVec.hxx.

operator>=() [1/3]

template<typename T0 , typename T1 >

auto ROOT::VecOps::operator>=	(	const RVec< T0 > &	v,
		const T1 &	y
	)		-> RVec<int>

Definition at line 1762 of file RVec.hxx.

operator>=() [2/3]

template<typename T0 , typename T1 >

auto ROOT::VecOps::operator>=	(	const RVec< T0 > &	v0,
		const RVec< T1 > &	v1
	)		-> RVec<int>

Definition at line 1762 of file RVec.hxx.

operator>=() [3/3]

template<typename T0 , typename T1 >

auto ROOT::VecOps::operator>=	(	const T0 &	x,
		const RVec< T1 > &	v
	)		-> RVec<int>

Definition at line 1762 of file RVec.hxx.

operator>>=() [1/2]

template<typename T0 , typename T1 >

RVec< T0 > & ROOT::VecOps::operator>>=	(	RVec< T0 > &	v,
		const T1 &	y
	)

Definition at line 1715 of file RVec.hxx.

operator>>=() [2/2]

template<typename T0 , typename T1 >

RVec< T0 > & ROOT::VecOps::operator>>=	(	RVec< T0 > &	v0,
		const RVec< T1 > &	v1
	)

Definition at line 1715 of file RVec.hxx.

operator^() [1/3]

template<typename T0 , typename T1 >

auto ROOT::VecOps::operator^	(	const RVec< T0 > &	v,
		const T1 &	y
	)		-> RVec<decltype(v[0] ^ y)>

Definition at line 1678 of file RVec.hxx.

operator^() [2/3]

template<typename T0 , typename T1 >

auto ROOT::VecOps::operator^	(	const RVec< T0 > &	v0,
		const RVec< T1 > &	v1
	)		-> RVec<decltype(v0[0] ^ v1[0])>

Definition at line 1678 of file RVec.hxx.

operator^() [3/3]

template<typename T0 , typename T1 >

auto ROOT::VecOps::operator^	(	const T0 &	x,
		const RVec< T1 > &	v
	)		-> RVec<decltype(x ^ v[0])>

Definition at line 1678 of file RVec.hxx.

operator^=() [1/2]

template<typename T0 , typename T1 >

RVec< T0 > & ROOT::VecOps::operator^=	(	RVec< T0 > &	v,
		const T1 &	y
	)

Definition at line 1712 of file RVec.hxx.

operator^=() [2/2]

template<typename T0 , typename T1 >

RVec< T0 > & ROOT::VecOps::operator^=	(	RVec< T0 > &	v0,
		const RVec< T1 > &	v1
	)

Definition at line 1712 of file RVec.hxx.

operator|() [1/3]

template<typename T0 , typename T1 >

auto ROOT::VecOps::operator|	(	const RVec< T0 > &	v,
		const T1 &	y
	)		-> RVec<decltype(v[0] | y)>

Definition at line 1679 of file RVec.hxx.

operator|() [2/3]

template<typename T0 , typename T1 >

auto ROOT::VecOps::operator|	(	const RVec< T0 > &	v0,
		const RVec< T1 > &	v1
	)		-> RVec<decltype(v0[0] | v1[0])>

Definition at line 1679 of file RVec.hxx.

operator|() [3/3]

template<typename T0 , typename T1 >

auto ROOT::VecOps::operator|	(	const T0 &	x,
		const RVec< T1 > &	v
	)		-> RVec<decltype(x | v[0])>

Definition at line 1679 of file RVec.hxx.

operator|=() [1/2]

template<typename T0 , typename T1 >

RVec< T0 > & ROOT::VecOps::operator|=	(	RVec< T0 > &	v,
		const T1 &	y
	)

Definition at line 1713 of file RVec.hxx.

operator|=() [2/2]

template<typename T0 , typename T1 >

RVec< T0 > & ROOT::VecOps::operator|=	(	RVec< T0 > &	v0,
		const RVec< T1 > &	v1
	)

Definition at line 1713 of file RVec.hxx.

operator||() [1/3]

template<typename T0 , typename T1 >

auto ROOT::VecOps::operator||	(	const RVec< T0 > &	v,
		const T1 &	y
	)		-> RVec<int>

Definition at line 1764 of file RVec.hxx.

operator||() [2/3]

template<typename T0 , typename T1 >

auto ROOT::VecOps::operator||	(	const RVec< T0 > &	v0,
		const RVec< T1 > &	v1
	)		-> RVec<int>

Definition at line 1764 of file RVec.hxx.

operator||() [3/3]

template<typename T0 , typename T1 >

auto ROOT::VecOps::operator||	(	const T0 &	x,
		const RVec< T1 > &	v
	)		-> RVec<int>

Definition at line 1764 of file RVec.hxx.

operator~()

template<typename T >

RVec< T > ROOT::VecOps::operator~

(

const RVec< T > &

v

)

Definition at line 1628 of file RVec.hxx.

pow() [1/3]

template<typename T0 , typename T1 >

RVec< PromoteTypes< T0, T1 > > ROOT::VecOps::pow	(	const RVec< T0 > &	v,
		const T1 &	y
	)

Definition at line 1846 of file RVec.hxx.

pow() [2/3]

template<typename T0 , typename T1 >

RVec< PromoteTypes< T0, T1 > > ROOT::VecOps::pow	(	const RVec< T0 > &	v0,
		const RVec< T1 > &	v1
	)

Definition at line 1846 of file RVec.hxx.

pow() [3/3]

template<typename T0 , typename T1 >

RVec< PromoteTypes< T0, T1 > > ROOT::VecOps::pow	(	const T0 &	x,
		const RVec< T1 > &	v
	)

Definition at line 1846 of file RVec.hxx.

Product()

template<typename T >

T ROOT::VecOps::Product	(	const RVec< T > &	v,
		const T	init = T(1)
	)

Return the product of the elements of the RVec.

Definition at line 1966 of file RVec.hxx.

Range() [1/3]

RVec< long long int > ROOT::VecOps::Range ( long long int  begin, long long int  end, long long int  stride  )

inline

Allows for negative begin, end, and/or stride.

Produce RVec<int> with entries equal to begin, begin+stride, ... , N, where N is the first integer such that N+stride exceeds or equals N in the positive or negative direction (same as in Python). An empty RVec is returned if begin >= end and stride > 0 or if begin < end and stride < 0. Throws a runtime_error if stride==0 Example code, at the ROOT prompt:

using namespace ROOT::VecOps;
cout << Range(1, 5, 2) << "\n";
// { 1, 3 }
cout << Range(-1, -11, -4) << "\n";
// { -1, -5, -9 }

Definition at line 3188 of file RVec.hxx.

Range() [2/3]

RVec< std::size_t > ROOT::VecOps::Range ( std::size_t  begin, std::size_t  end  )

inline

Produce RVec with entries equal to begin, begin+1, ..., end-1.

An empty RVec is returned if begin >= end.

Definition at line 3167 of file RVec.hxx.

Range() [3/3]

RVec< std::size_t > ROOT::VecOps::Range ( std::size_t  length )

inline

Produce RVec with entries starting from 0, and incrementing by 1 until a user-specified N is reached.

Example code, at the ROOT prompt:

using namespace ROOT::VecOps;
cout << Range(3) << "\n";
// { 0, 1, 2 }

Definition at line 3155 of file RVec.hxx.

remainder() [1/3]

template<typename T0 , typename T1 >

RVec< PromoteTypes< T0, T1 > > ROOT::VecOps::remainder	(	const RVec< T0 > &	v,
		const T1 &	y
	)

Definition at line 1835 of file RVec.hxx.

remainder() [2/3]

template<typename T0 , typename T1 >

RVec< PromoteTypes< T0, T1 > > ROOT::VecOps::remainder	(	const RVec< T0 > &	v0,
		const RVec< T1 > &	v1
	)

Definition at line 1835 of file RVec.hxx.

remainder() [3/3]

template<typename T0 , typename T1 >

RVec< PromoteTypes< T0, T1 > > ROOT::VecOps::remainder	(	const T0 &	x,
		const RVec< T1 > &	v
	)

Definition at line 1835 of file RVec.hxx.

Reverse()

template<typename T >

RVec< T > ROOT::VecOps::Reverse

(

const RVec< T > &

v

)

Return copy of reversed vector.

Example code, at the ROOT prompt:

using namespace ROOT::VecOps;
RVecD v {2., 3., 1.};
auto v_reverse = Reverse(v);
v_reverse
// (ROOT::VecOps::RVec<double> &) { 1.0000000, 3.0000000, 2.0000000 }

Definition at line 2481 of file RVec.hxx.

round()

template<typename T >

RVec< PromoteType< T > > ROOT::VecOps::round

(

const RVec< T > &

v

)

Definition at line 1869 of file RVec.hxx.

sin()

template<typename T >

RVec< PromoteType< T > > ROOT::VecOps::sin

(

const RVec< T > &

v

)

Definition at line 1851 of file RVec.hxx.

sinh()

template<typename T >

RVec< PromoteType< T > > ROOT::VecOps::sinh

(

const RVec< T > &

v

)

Definition at line 1859 of file RVec.hxx.

Sort() [1/2]

template<typename T >

RVec< T > ROOT::VecOps::Sort

(

const RVec< T > &

v

)

Return copy of RVec with elements sorted in ascending order.

This helper is different from Argsort since it does not return an RVec of indices, but an RVec of values.

Example code, at the ROOT prompt:

using namespace ROOT::VecOps;
RVecD v {2., 3., 1.};
auto v_sorted = Sort(v);
v_sorted
// (ROOT::VecOps::RVec<double> &) { 1.0000000, 2.0000000, 3.0000000 }

Definition at line 2502 of file RVec.hxx.

Sort() [2/2]

template<typename T , typename Compare >

RVec< T > ROOT::VecOps::Sort	(	const RVec< T > &	v,
		Compare &&	c
	)

Return copy of RVec with elements sorted based on a comparison operator.

The comparison operator has to fulfill the same requirements of the predicate of by std::sort.

This helper is different from Argsort since it does not return an RVec of indices, but an RVec of values.

Example code, at the ROOT prompt:

using namespace ROOT::VecOps;
RVecD v {2., 3., 1.};
auto v_sorted = Sort(v, [](double x, double y) {return 1/x < 1/y;});
v_sorted
// (ROOT::VecOps::RVec<double> &) { 3.0000000, 2.0000000, 1.0000000 }

Definition at line 2527 of file RVec.hxx.

sqrt()

template<typename T >

RVec< PromoteType< T > > ROOT::VecOps::sqrt

(

const RVec< T > &

v

)

Definition at line 1847 of file RVec.hxx.

StableArgsort() [1/2]

template<typename T >

RVec< typename RVec< T >::size_type > ROOT::VecOps::StableArgsort

(

const RVec< T > &

v

)

Return an RVec of indices that sort the input RVec while keeping the order of equal elements.

This is the stable variant of Argsort.

Example code, at the ROOT prompt:

using namespace ROOT::VecOps;
RVecD v {2., 3., 2., 1.};
auto sortIndices = StableArgsort(v)
// (ROOT::VecOps::RVec<unsigned long> &) { 3, 0, 2, 1 }
auto values = Take(v, sortIndices)
// (ROOT::VecOps::RVec<double> &) { 1.0000000, 2.0000000, 2.0000000, 3.0000000 }

Definition at line 2295 of file RVec.hxx.

StableArgsort() [2/2]

template<typename T , typename Compare >

RVec< typename RVec< T >::size_type > ROOT::VecOps::StableArgsort	(	const RVec< T > &	v,
		Compare &&	c
	)

Return an RVec of indices that sort the input RVec based on a comparison function while keeping the order of equal elements.

This is the stable variant of Argsort.

Example code, at the ROOT prompt:

using namespace ROOT::VecOps;
RVecD v {2., 3., 2., 1.};
auto sortIndices = StableArgsort(v, [](double x, double y) {return x > y;})
// (ROOT::VecOps::RVec<unsigned long> &) { 1, 0, 2, 3 }
auto values = Take(v, sortIndices)
// (ROOT::VecOps::RVec<double> &) { 3.0000000, 2.0000000, 2.0000000, 1.0000000 }

Definition at line 2318 of file RVec.hxx.

StableSort() [1/2]

template<typename T >

RVec< T > ROOT::VecOps::StableSort

(

const RVec< T > &

v

)

Return copy of RVec with elements sorted in ascending order while keeping the order of equal elements.

This is the stable variant of Sort.

This helper is different from StableArgsort since it does not return an RVec of indices, but an RVec of values.

Example code, at the ROOT prompt:

using namespace ROOT::VecOps;
RVecD v {2., 3., 2, 1.};
auto v_sorted = StableSort(v);
v_sorted
// (ROOT::VecOps::RVec<double> &) { 1.0000000, 2.0000000, 2.0000000, 3.0000000 }

Definition at line 2551 of file RVec.hxx.

StableSort() [2/2]

template<typename T , typename Compare >

RVec< T > ROOT::VecOps::StableSort	(	const RVec< T > &	v,
		Compare &&	c
	)

Return copy of RVec with elements sorted based on a comparison operator while keeping the order of equal elements.

The comparison operator has to fulfill the same requirements of the predicate of std::stable_sort.

This helper is different from StableArgsort since it does not return an RVec of indices, but an RVec of values.

This is the stable variant of Sort.

Example code, at the ROOT prompt:

using namespace ROOT::VecOps;
RVecD v {2., 3., 2., 1.};
auto v_sorted = StableSort(v, [](double x, double y) {return 1/x < 1/y;});
v_sorted
// (ROOT::VecOps::RVec<double> &) { 3.0000000, 2.0000000, 2.0000000, 1.0000000 }

using namespace ROOT::VecOps;
RVec<RVecD> v {{2., 4.}, {3., 1.}, {2, 1.}, {1., 4.}};
auto v_sorted = StableSort(StableSort(v, [](const RVecD &x, const RVecD &y) {return x[1] < y[1];}), [](const RVecD &x, const RVecD &y) {return x[0] < y[0];});
v_sorted
// (ROOT::VecOps::RVec<ROOT::VecOps::RVec<double> > &) { { 1.0000000, 4.0000000 }, { 2.0000000, 1.0000000 }, { 2.0000000, 4.0000000 }, { 3.0000000, 1.0000000 } }

Definition at line 2587 of file RVec.hxx.

StdDev()

template<typename T >

double ROOT::VecOps::StdDev

(

const RVec< T > &

v

)

Get the standard deviation of the elements of an RVec.

The return type is a double precision floating point number. Example code, at the ROOT prompt:

using namespace ROOT::VecOps;
RVecF v {1.f, 2.f, 4.f};
auto v_sd = StdDev(v);
v_sd
// (double) 1.5275252

Definition at line 2126 of file RVec.hxx.

Sum() [1/2]

std::size_t ROOT::VecOps::Sum ( const RVec< bool > &  v, std::size_t  zero = 0ul  )

inline

Definition at line 1959 of file RVec.hxx.

Sum() [2/2]

template<typename T >

T ROOT::VecOps::Sum	(	const RVec< T > &	v,
		const T	zero = T(0)
	)

Sum elements of an RVec.

Example code, at the ROOT prompt:

using namespace ROOT::VecOps;
RVecF v {1.f, 2.f, 3.f};
auto v_sum = Sum(v);
v_sum
// (float) 6.f
auto v_sum_d = Sum(v, 0.);
v_sum_d
// (double) 6.0000000

using namespace ROOT::VecOps;
const ROOT::Math::PtEtaPhiMVector lv0 {15.5f, .3f, .1f, 105.65f},
  lv1 {34.32f, 2.2f, 3.02f, 105.65f},
  lv2 {12.95f, 1.32f, 2.2f, 105.65f};
RVec<ROOT::Math::PtEtaPhiMVector> v {lv0, lv1, lv2};
auto v_sum_lv = Sum(v, ROOT::Math::PtEtaPhiMVector());
v_sum_lv
// (ROOT::Math::LorentzVector<ROOT::Math::PtEtaPhiM4D<double> > &) (30.8489,2.46534,2.58947,361.084)

Definition at line 1954 of file RVec.hxx.

swap()

template<typename T >

void ROOT::VecOps::swap	(	RVec< T > &	lhs,
		RVec< T > &	rhs
	)

Definition at line 2233 of file RVec.hxx.

Take() [1/4]

template<typename T >

RVec< T > ROOT::VecOps::Take	(	const RVec< T > &	v,
		const int	n
	)

Return first n elements of an RVec if n > 0 and last n elements if n < 0.

Example code, at the ROOT prompt:

using namespace ROOT::VecOps;
RVecD v {2., 3., 1.};
auto firstTwo = Take(v, 2);
firstTwo
// (ROOT::VecOps::RVec<double>) { 2.0000000, 3.0000000 }
auto lastOne = Take(v, -1);
lastOne
// (ROOT::VecOps::RVec<double>) { 1.0000000 }

Definition at line 2382 of file RVec.hxx.

Take() [2/4]

template<typename T >

RVec< T > ROOT::VecOps::Take	(	const RVec< T > &	v,
		const int	n,
		const T	default_val
	)

Return first n elements of an RVec if n > 0 and last n elements if n < 0.

This Take version defaults to a user-specified value default_val if the absolute value of n is greater than the size of the RVec v

Example code, at the ROOT prompt:

using ROOT::VecOps::RVec;
RVec<int> x{1,2,3,4};
Take(x,-5,1)
// (ROOT::VecOps::RVec<int>) { 1, 1, 2, 3, 4 }
Take(x,5,20)
// (ROOT::VecOps::RVec<int>) { 1, 2, 3, 4, 20 }
Take(x,-1,1)
// (ROOT::VecOps::RVec<int>) { 4 }
Take(x,4,1)
// (ROOT::VecOps::RVec<int>) { 1, 2, 3, 4 }

Definition at line 2423 of file RVec.hxx.

Take() [3/4]

template<typename T >

RVec< T > ROOT::VecOps::Take	(	const RVec< T > &	v,
		const RVec< typename RVec< T >::size_type > &	i
	)

Return elements of a vector at given indices.

Example code, at the ROOT prompt:

using namespace ROOT::VecOps;
RVecD v {2., 3., 1.};
auto vTaken = Take(v, {0,2});
vTaken
// (ROOT::VecOps::RVec<double>) { 2.0000000, 1.0000000 }

Definition at line 2339 of file RVec.hxx.

Take() [4/4]

template<typename T >

RVec< T > ROOT::VecOps::Take	(	const RVec< T > &	v,
		const RVec< typename RVec< T >::size_type > &	i,
		const T	default_val
	)

Take version that defaults to (user-specified) output value if some index is out of range.

Definition at line 2351 of file RVec.hxx.

tan()

template<typename T >

RVec< PromoteType< T > > ROOT::VecOps::tan

(

const RVec< T > &

v

)

Definition at line 1853 of file RVec.hxx.

tanh()

template<typename T >

RVec< PromoteType< T > > ROOT::VecOps::tanh

(

const RVec< T > &

v

)

Definition at line 1861 of file RVec.hxx.

tgamma()

template<typename T >

RVec< PromoteType< T > > ROOT::VecOps::tgamma

(

const RVec< T > &

v

)

Definition at line 1876 of file RVec.hxx.

trunc()

template<typename T >

RVec< PromoteType< T > > ROOT::VecOps::trunc

(

const RVec< T > &

v

)

Definition at line 1868 of file RVec.hxx.

Var()

template<typename T >

double ROOT::VecOps::Var

(

const RVec< T > &

v

)

Get the variance of the elements of an RVec.

The return type is a double precision floating point number. Example code, at the ROOT prompt:

using namespace ROOT::VecOps;
RVecF v {1.f, 2.f, 4.f};
auto v_var = Var(v);
v_var
// (double) 2.3333333

Definition at line 2102 of file RVec.hxx.

Where() [1/4]

template<typename T >

RVec< T > ROOT::VecOps::Where	(	const RVec< int > &	c,
		const RVec< T > &	v1,
		const RVec< T > &	v2
	)

Return the elements of v1 if the condition c is true and v2 if the condition c is false.

Example code, at the ROOT prompt:

using namespace ROOT::VecOps;
RVecD v1 {1., 2., 3.};
RVecD v2 {-1., -2., -3.};
auto c = v1 > 1;
c
// (ROOT::VecOps::RVec<int> &) { 0, 1, 1 }
auto if_c_v1_else_v2 = Where(c, v1, v2);
if_c_v1_else_v2
// (ROOT::VecOps::RVec<double> &) { -1.0000000, 2.0000000, 3.0000000 }

Definition at line 2792 of file RVec.hxx.

Where() [2/4]

template<typename T >

RVec< T > ROOT::VecOps::Where	(	const RVec< int > &	c,
		const RVec< T > &	v1,
		typename RVec< T >::value_type	v2
	)

Return the elements of v1 if the condition c is true and sets the value v2 if the condition c is false.

Example code, at the ROOT prompt:

using namespace ROOT::VecOps;
RVecD v1 {1., 2., 3.};
double v2 = 4.;
auto c = v1 > 1;
c
// (ROOT::VecOps::RVec<int> &) { 0, 1, 1 }
auto if_c_v1_else_v2 = Where(c, v1, v2);
if_c_v1_else_v2
// (ROOT::VecOps::RVec<double>) { 4.0000000, 2.0000000, 3.0000000 }

Definition at line 2820 of file RVec.hxx.

Where() [3/4]

template<typename T >

RVec< T > ROOT::VecOps::Where	(	const RVec< int > &	c,
		T	v1,
		T	v2
	)

Return a vector with the value v2 if the condition c is false and sets the value v1 if the condition c is true.

Example code, at the ROOT prompt:

using namespace ROOT::VecOps;
double v1 = 4.;
double v2 = 2.;
RVecI c {0, 1, 1};
auto if_c_v1_else_v2 = Where(c, v1, v2);
if_c_v1_else_v2
// (ROOT::VecOps::RVec<double>) { 2.0000000, 4.0000000, 4.0000000 }

Definition at line 2874 of file RVec.hxx.

Where() [4/4]

template<typename T >

RVec< T > ROOT::VecOps::Where	(	const RVec< int > &	c,
		typename RVec< T >::value_type	v1,
		const RVec< T > &	v2
	)

Return the elements of v2 if the condition c is false and sets the value v1 if the condition c is true.

Example code, at the ROOT prompt:

using namespace ROOT::VecOps;
double v1 = 4.;
RVecD v2 {1., 2., 3.};
auto c = v2 > 1;
c
// (ROOT::VecOps::RVec<int> &) { 0, 1, 1 }
auto if_c_v1_else_v2 = Where(c, v1, v2);
if_c_v1_else_v2
// (ROOT::VecOps::RVec<double>) { 1.0000000, 4.0000000, 4.0000000 }

Definition at line 2848 of file RVec.hxx.