Re: Re: Info about Projection

From: David GONZALEZ MALINE <David.Gonzalez.Maline_at_cern.ch>
Date: Mon, 30 Jun 2008 12:51:24 +0200


I guess I had to send this to the whole list anyways, so I will repeat myself:

Hello Merinda,

Did you set a range in the histograms before projecting them?

David

Melinda Siciliano wrote:
> I forget to say that the 1D Projection are less than the 2D Projection.
>
> Melinda
>
> On Mon, Jun 30, 2008 at 11:43 AM, Melinda Siciliano
> <mellybinda_at_gmail.com <mailto:mellybinda_at_gmail.com>> wrote:
>
> Dear all,
>
> I made two ProjectionXY of the same TProfile2D object: the first
> using the "B" option, the second using the "W" one. If I check
> the number of entries I obtain that both the 2D hostis have the
> same number. But, if I make the ProjectionX/Y of the two
> histograms, for the "B" option I obtain that the entries of the
> 1D histograms are the same of the 2D histogram. For the 1D
> histos, on the contrary, the entries of the 1D are different from
> the entries of the 2D histogram.
>
> Have I forget to do something (writing some particular option...)
> or to consider something?
>
> Thanks,
>
> Melinda
>
>
Received on Mon Jun 30 2008 - 12:50:46 CEST

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