Dear ROOT users,
I’m plotting a variable from a TTree and would like to use some sort of OR command in the restrictions, ie
TBranch->Draw(“speed>>h1”,“velocity==1 OR velocity== - 1”)
So far I’ve been making two histograms separately then adding them, but this is taking up too much time, thanks
Kim
Hi Kim,
Maybe something like this:
See documentation of TTree::Draw
And especially this part:[quote]The expressions can use all the operations and build-in functions supported by TFormula (See TFormula::Analyze)[/quote]
Cheers, Bertrand.
Dear Bellenot,
Thank you, it’s just what I was looking for!!
Kim
[quote=“bellenot”]Hi Kim,
Maybe something like this:
See documentation of TTree::Draw
And especially this part:[quote]The expressions can use all the operations and build-in functions supported by TFormula (See TFormula::Analyze)[/quote]
Cheers, Bertrand.[/quote]