Hi, sorry if this is a very stupid error, but I just modified a bit the example ROOT: tutorials/roofit/rf408_RDataFrameToRooFit.py File Reference, for 1 column,
as follows
d = ROOT.RDataFrame(2000000)
dd = d.Define("x", "gRandom->Uniform(-5., 5.)")
x = ROOT.RooRealVar("x", "x", -5.0, 5.0)
rooDataSet = dd.Book(ROOT.std.move(ROOT.RooDataSetHelper("dataset", "dataset", ROOT.RooArgSet(x))), "x")
and I got the following
Traceback (most recent call last)
Input In [45], in <cell line: 1>()
----> 1 rooDataSet = dd.Book(ROOT.std.move(ROOT.RooDataSetHelper("dataset", "dataset", ROOT.RooArgSet(x))), "x")
TypeError: Template method resolution failed:
Failed to instantiate "Book(RooAbsDataHelper<RooDataSet>&&,std::string)"
thanks