DOC: interpolate: add a note on data with different scales #17313
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ev-br
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scipy.interpolate
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tupui
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Nov 1, 2022
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Reference issue
closes gh-13021
What does this implement/fix?
If different dimensions of the N-dim data have scales which differ by many orders of magnitude, the result may be jittery or have other numerical artifacts. There is not much to do about it other than warn users to watch out and rescale the data if needed.
The issue was reported for
griddataandinterp2d, but normalizing the scales of the data is a good idea regardless of a specific interpolator, so add a note to this effect for all N>1 interpolators.