You'll find the histogram function that deals with weights on the numpy trac ticket 189,
I'm waiting for some hints as to where the histogram function should reside (numpy.histogram, numpy.stats.histogram, ...) before submitting a patch .
Salut,
David
2006/10/25, Nicolas Champavert <[EMAIL PROTECTED]>:
Hi,
it would be great if you could add the weight option in the 1D
histogram too.
Nicolas
David Huard a écrit :
> Xavier,
> Here is the patch against svn. Please report any bug. I haven't had
> the time to test it extensively, something that should be done before
> commiting the patch to the repo. I'd appreciate your feedback.
>
> David
>
> 2006/10/24, David Huard < [EMAIL PROTECTED]
> <mailto:[EMAIL PROTECTED]>>:
>
> Hi Xavier,
>
> You could tweak histogram2d to do what you want, or you could give
> me a couple of days and I'll do it and let you know. If you want
> to help, you could write a test using your particular application
> and data.
>
> David
>
>
> 2006/10/24, Xavier Gnata < [EMAIL PROTECTED]
> <mailto:[EMAIL PROTECTED]>>:
>
> Hi,
>
> I have a set of 3 1D large arrays.
> The first 2 one stand for the coordinates of particules and
> the last one
> for their masses.
> I would like to be able to plot this data ie to compute a 2D
> histogram
> summing the masses in each bin.
> I cannot find a way to do that without any loop on the indices
> resulting
> too a very slow function.
>
> I'm looking for an elegant way to do that with numpy (or
> scipy??) function.
>
> For instance, scipy.histogram2d cannot do the job because it
> only counts
> the number of samples in each bin.
> There is no way to deal with weights.
>
> Xavier.
>
>
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