Hi roottalk- I'm new to this, have what I hope is an easy question to answer: I have a class that contains an stl vector of ints, and I use a TFile and a TTree to write it out to a file. When I load up the file in an interactive session, I can see all the data, as expected, in my branches when I access them directly, e.g. branch->GetEntry(index). However when I click the leave in the tree viewer, I get the message Warning in <TSelectorDraw::ProcessFillObject>: Not implemented for vector<int,allocator<int> > So I'm guessing that I need to somehow convert this vector into something that is plottable by root. Can anyone suggest a techinque to do this? I may have to repeat this process for a very large number of root files with stl vectors of various types... the more generic the better. Perhaps the idea is a file converter, from root-with-stl-nonplottables to root-with-plottables. Any tips are gratefully accepted, Thanks, Troy Straszheim
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