Clone a weigthed dataset for a simultaneous fit

Roofit and RooStats
1

Hi,

I’m using a simultaneous fit using one weigthed dataset and 2 variables.
I renamed the variables in the dataset and seems ok.
I tried to do more or less the same cloning the dataset but when import it
the new dataset seems “reweigthed”

RooDataSet::data[dmfit,mrho_bum,mrho3,m3pi,L_nLbsig,nBkg_sw,L_nBkg,weight:nLbsig_sw]
= 23979 entries (817.946 weighted)
RooDataSet::dataset_rwLb56_clone[dmfit,mrho2,mrho_bum,m3pi,L_nLbsig,nBkg_sw,L_nBkg,weight:nLbsig_sw]
= 23979 entries (-4239.09 weighted)

and the fit fails.

Any suggestion?

Thanks

2

Hi,

This problem has been fixed in ROOT 5.27/04 (due this week)

Wouter