PyRoot tutorials

Selected examples illustrating how to use ROOT's Python interface: PyROOT.

Files
file	demo.py
	To run, do "python <path-to>/demo.py".
file	demoshelp.py
	Display demo help.
file	DynamicSlice.py
	Example of function called when a mouse event occurs in a pad.
file	fillrandom.py
	FillRandom example
file	fit1.py
	Fit example.
file	formula1.py
	TF1 example.
file	geometry.py
	Geometry
file	gerrors.py
	A Simple Graph with error bars
file	graph.py
	A Simple Graph Example
file	gui_ex.py
	A Simple GUI Example.
file	h1draw.py
	A Simple histogram drawing example
file	hsimple.py
	This program creates :
file	hsum.py
	Simple example illustrating how to use the C++ interpreter
file	mrt.py
	Build ROOT Ntuple from other source.
file	multifit.py
	Example showing how to fit in a sub-range of an histogram An histogram is created and filled with the bin contents and errors defined in the table below.
file	na49geomfile.py
	Before executing this macro, the file makegeometry.C must have been executed.
file	na49view.py
	This macro generates two views of the NA49 detector.
file	na49visible.py
	Set visibility attributes for the NA49 geometry Set Shape attributes.
file	ntuple1.py
	Ntuple drawing example.
file	numberEntry.py
file	parse_CSV_file_with_TTree_ReadStream.py
	This function provides an example of how one might massage a csv data file to read into a ROOT TTree via TTree::ReadStream.
file	pyroot001_arrayInterface.py
	This tutorial illustrates the conversion of STL vectors and TVec to numpy arrays without copying the data.
file	pyroot002_TTreeAsMatrix.py
	This tutorial shows how a TTree can be quickly converted to a numpy array or a pandas.DataFrame.
file	pyroot003_prettyPrinting.py
	This tutorial illustrates the pretty printing feature of PyROOT, which reveals the content of the object if a string representation is requested, e.g., by Python's print statement.
file	pyroot004_NumbaDeclare.py
	This tutorial illustrates how PyROOT supports declaring C++ callables from Python callables making them, for example, usable with RDataFrame.
file	ratioplot.py
	Display two histograms and their ratio.
file	shapes.py
	Draw the geometry using the x3d viewver.
file	staff.py
	example of macro to read data from an ascii file and create a root file with a Tree.
file	surfaces.py
	Surfaces example
file	tornado.py
	Tornado example.
file	zdemo.py
	This macro is an example of graphs in log scales with annotations.