Manuel Sanchez wrote: > > Hi Rooters, > > Is it difficult to add support in TTree::Draw() for separate selections > in 2D and 3D plots?. I'll explain myself; the idea is to do things like: > > T.Draw("time:time","sector==1:sector==2") > > So i can do a plot of times in sector 1 against times in sector 2 > eventhough i have all the times in one single branch. BTW, is there > another way to do this? > > Would it be enough to use fSelect1,fSelect2 and fSelect3, instead of > only fSelect, in the TTree class? > Manuel, You can try: T.Draw(time*(sector==1):time*(sector==2"); This will have a side-effect to generate - time when sector==1 //ok - 0 when sector != 1 //you will see many entries at 0 An alternative solution is to loop yourself (using may be the code generated by MakeCode) and fill your scatter-plot with your conditions. Rene Brun
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