[Numpy-discussion] effectively computing variograms with numpy
Hanno Klemm
klemm@phys.ethz...
Mon Jun 25 16:09:02 CDT 2007
I will try and dig a bit more in the literature, maybe I find something.
Hanno
On Jun 25, 2007, at 4:59 PM, Timothy Hochberg wrote:
>
>
>
> On 6/25/07, Hanno Klemm < klemm@phys.ethz.ch> wrote:
>> Tim,
>>
>> Thank you very much, the code does what's it expected to do.
>> Unfortunately the thing is still pretty slow on large data sets.
> This does seem like the kind of thing that there should be a faster
> way to compute, particularly since you are binning the results up. One
> approach would be to just bin the data before doing the computation,
> however, that loses a lot of accuracy. It does seem like there should
> be some moment-like approach that would allow you to bin the data
> before you do the computation, computing the first and second moments,
> or something similar and then computing the results from the binned
> moments. I don't know that that would work -- it's just a vague hunch.
> I don't know if I'll have time to try it out, but I thought I would
> mention it.
>
>
>
>
>
>
> Your welcome, I hope this helps some.
>
> Regards,
>
> --
> . __
> . |-\
> .
> . tim.hochberg@ieee.org
>
>
> [SNIP]
>
> _______________________________________________
> Numpy-discussion mailing list
> Numpy-discussion@scipy.org
> http://projects.scipy.org/mailman/listinfo/numpy-discussion
>
--
Hanno Klemm
hanno.klemm@xs4all.nl
http://www.mth.kcl.ac.uk/~klemm
More information about the Numpy-discussion
mailing list