[RF] Ensure RooHistPdf values are positive in RooHistPdf::doEval()
#21161
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This is to be consistent with the old `RooHistPdf::evaluate()` code path. Closes root-project#21159, where floating point precision effects made the value fluctuate slightly below zero, resulting in NaN values when the RooFFTConvPdf (which internally uses a `RooHistPdf` to cache values) is used in a `RooAbsPdf`. Closes root-project#21159.
Test Results 22 files 22 suites 3d 23h 8m 41s ⏱️ For more details on these failures, see this check. Results for commit b9e5300. |
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This is to be consistent with the old
RooHistPdf::evaluate()codepath.
Closes #21159, where floating point precision effects made the value
fluctuate slightly below zero, resulting in NaN values when the
RooFFTConvPdf (which internally uses a
RooHistPdfto cache values) isused in a
RooAbsPdf.Closes #21159.