[SciPy-user] Stineman interpolation

josef.pktd@gmai... josef.pktd@gmai...
Sat May 30 13:15:41 CDT 2009


On Sat, May 30, 2009 at 2:09 PM, John Hunter <jdh2358@gmail.com> wrote:
> On Sat, May 30, 2009 at 12:57 PM, Krishna Bhagavatula
> <krisphoenix89@gmail.com> wrote:
>> Hi,
>>
>> Stineman interpolation is supposed to be a well behaved method of
>> interpolation.
>>
>> Can someone explain why it's behaving wildly in a simple case:
>>
>> x = (0, 10, 70, 100)
>> y = (0, 535, 595, 1000)
>> xx = arange(0,100,1)
>
>> yy = stineman_interp(xx,x,y,yp=None)
>> plot(x,y,'x')
>> plot(xx,yy)
>>
>> Are there any exceptions when it does not behave well?
>
> I believe you are using the matplotlib.mlab stineman_interp funciton
> -- as far as I know this function is not in scipy.  If so, you should
> direct your question to matplotlib-users

thanks for the location info, namespaces are pretty nice.
I didn't find it in numpy/scipy

Josef

>
> http://lists.sourceforge.net/mailman/listinfo/matplotlib-users
>
> In your post, you may also want to CC the original author
> Norbert.Nemec at physik.uni-regensburg.de and describe more precisely
> what you mean by "behaving wildly"
>
> JDH


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