How to write a cut files for Drawing a variable with C++ macro?


I am trying to draw a on-the-fly variable by using a macro, so far i am able to do so by


i would like to draw the variable with selection but i need a cut files as the error suggest:


Error in TTreePlayer::DrawSelect: Drawing using a C++ file currently requires that both the expression and the selection are files

How do i write an expression and the selection in root macro? Thanks

ROOT Version: 6.18/04
Platform: Ubuntu 18.04 LTS
Compiler: gcc 7.4.0

@pcanal can give more details, but you can use MakeSelector for that.

At the moment, I don’t see us being able to add this feature. Instead you might want to see if you can use RDataFrame.


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