How to use RooFits RooClassFactory PDFs from python

ROOT
1

I created a skeleton PDF from RooFit according to the official documentation (page 34) and compiled it. But how can I call this new PDF class from python?

2

Hi,

assuming there’s a dictionary for it, it should work out-of-the-box. If not, please post some code.

Cheers,
Wim

3

Hi and sorry for giving so little information, It is solved now.

I’ve created a empty skeleton RooFit PDF like this:

RooClassFactory::makePdf(“RooMyPdf”,”x,alpha”) ;

then I start root in the according folder “PDFfolder” and “compile and link” the class with

root>.L RooMyPdf.cxx+

which gives correct output and creates the dictionary:

Info in TUnixSystem::ACLiC: creating shared library pathname/PDFfolder/./RooMyPdf_cxx.so

I was able to load the class now with

ROOT.gSystem.Load(‘RoomyPdf_cxx.so’)