Hi ROOTers! I have the following problem with ROOT version 3.00/06 on linux: I have a TTree with a branch "Ivtyp" that contains a Char_t to store small numbers (0 to 2). If I do mytree->Draw("Ivtyp") for a given file I get a histogram that contains about 50% zeros and 50% rest. I now want to select e.g. only entries where the variable equals one. So I do mytree->Draw("Ivtyp","Ivtyp==1") but this gives the same result as the above command. To me it seems that Char_t variables cannot be used to select if they are treated as numbers. Is there a workaround? Can it be fixed? Or is the only way to use Short_t instead? Many thanks, Ingo -- "What're quantum mechanics?" "I don't know. People who repair quantums I suppose." --Rincewind, Terry Pratchett "Eric"
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