Hello again,
I trimmed down the example some more to the point where it’s clear that the main problem is the attempt to serialize a large vector<map<TString, map<TString, double>>>. Going through TTree does not seem to help. Is there any other way I can persist the content of this object onto a TFile, short of writing my own format?
Thanks,
Davide
minimal_repr.hh (504 Bytes) minimal_repr.cc (1.5 KB)