RooUnbinnedL Class Reference

Class RooUnbinnedL implements a -log(likelihood) calculation from a dataset (assumed to be unbinned) and a PDF.

The NLL is calculated as

\[ \sum_\mathrm{data} -\log( \mathrm{pdf}(x_\mathrm{data})) \]

In extended mode, a \( N_\mathrm{expect} - N_\mathrm{observed}*log(N_\mathrm{expect}) \) term is added.

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The documentation for this class was generated from the following file:

• roofit/roofitcore/src/TestStatistics/RooUnbinnedL.cxx