Hi Chris,
I cannot reproduce this problem.
You are likely using an old version.
Rene Brun
On Sun, 19 Dec 1999, Christ Tassilo wrote:
>
> Hi rooters!
>
> I try to do the following:
>
> I have a TNtuple out of which I'd like to dump two quantities into a TH2F
> histogram with a predefined binning. (If I don't demand this, the
> mid located bins get united.) If however I create a TH2F with appropriate
> binning and type:
>
> myNtuple->Draw("val1:val2>>my2DHistogram","myCut");
>
> the histogram is drawn empty.
>
> If I type:
> myNtuple->Draw("val1>>my1DHistogram","myCut");
> the binning is automatically right for the values val1 can take.
>
> Is there something I do wrong and a way to do this except filling the TH2F
> from the very beginning?
>
>
> Greetings!
>
>
> Tassilo
>
> -------------------------------------------------------------------------------
> Tassilo Christ
>
> State University of NY at Stony Brook
> PHENIX-Experiment at BNL
>
> Campus: Private:
> Department of Physics and Astronomy Schomburg A 112 - C,
> Office C116 350 North Loop Road
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>
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>
> "Microsoft spel chekker four sail, worx grate!"
> "A world without walls and fences could live without Windows and Gates..."
>
>
> And my personal favourite:
> esa$ gcc -Wall -o ariane5 ariane4.c
> ariane4.c: 666: warning: long float implicitly truncated to unsigned type
> esa$ ariane5
>
> :->
> -------------------------------------------------------------------------------
>
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