Hi, I have a w.factory(“PolyVar::mHighMass(ycor,{am0[3.1,2.9,3.5],am1[0.0,-1,1],am2[0.0,-1,1]})”) depending on y = ROOT.RooRealVar( “ycor”, “rapidity”, 0.0, 0.0, 2.0, “” ) which I used to parametrize a gaussian pdf: w.factory(‘Gaussian::gaussHighMass(mcor,mHighMass,sigma)’) I succeeded to mak…

So, the problem is probably that there is a y inside the workspace and you seem to have a y outside, at least telling from the snippet that you posted. The pdfs/functions from the workspace are only connected to the one inside.

ROOT Forum

polyVar, how do get the value for a given x?

Roofit and RooStats

StephanH April 27, 2020, 1:39pm 6

It could also be the bug discussed here: