Re: fixed bin width

From: John <idarraga_at_cern.ch>
Date: Tue, 8 Jul 2008 10:32:45 -0400


Roger. Thanks Rene :) !

John

Rene Brun wrote:

> and I repeat again that TH1::Fill will do all that automatically for you !!
> 
> Rene Brun
> 
> Adrian Sevcenco wrote:

>> John wrote:
>>> OK, get it ... what I have done in the past is to maintain the values
>>> that I am going to use to fill my histogram in a data structure (a
>>> simple array for example). Then I figure my limits and proper binning.
>>> It is only at the very end that I define the histogram and procced to
>>> fill it up from the array. I don't know if you like this idea. If you
>>> need an example let me know.
>>>
>>> Did you noticed that TH1F::Fill(Double_t x) returns -1 when you enter a
>>> value out of range ? That helps you out detecting when you are filling
>>> out of the defined range.
>> Yeah, i just seen this :) that would help me to hack an personal
>> version of Fill .. but its already too much trouble, more than using a
>> tree.
>> Thanks,
>> Best regards,
>> Adrian
>>
>>> cheers,
>>>
>>> John Idarraga
>>> UMontreal
>>

> Received on Tue Jul 08 2008 - 16:39:12 CEST

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