>> Root> f = TFile("hsimple.root"); >> Root> ntuple->Draw("pz>>h1"); >> Root> ntuple->Draw("pz:py>>h2"); >> Root> ntuple->Draw("pz:py:px>>h3"); >> >> The first two work, but the last does not produce histogram h3. > >Hi Scott, >Right, this is not yet implemented. I will code this addition. Hi, You don't need to add it on my account... I just noticed it and thought I would mention it. I should have just checked the source to see it was not in there. > >You can create a 2-d function, example > TF2 f2("f2","x+y",0,10,0,10); > f2.Draw("surf1"); In this case I am more interested in building 3D representations of ntuple data, rather than of symbolic variables. That is, a 2D lego 'histogram' where the height of the x,y bin is set by the value of z. A 3D graph, really. Thanks, Scott
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