Hi Paul, My guess is that you removed from the loop the statement calling GetEntry. Rene Brun Paul Parazzoli wrote: > > Part 1.1 Type: Plain Text (text/plain) > Encoding: quoted-printable Hey folks, I have used make class to generate mine.C and mine.h. now if I say, "m.Show(16)", in the command line then it puts out all those leaf values correctly. But if I edit the Loop() method to say, "printf( "%f ", someLeaf[ jentry ] )", I get nothing but zeroes. So why is that? if I say myHisto->Fill( "someLeaf[ jentry ]"), it also fills myHisto with a bunch of zeros thanks paul
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