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Add Akima Interpolation to Pandas #7588

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dershow opened this issue Jun 27, 2014 · 3 comments
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Add Akima Interpolation to Pandas #7588

dershow opened this issue Jun 27, 2014 · 3 comments
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Enhancement Missing-data np.nan, pd.NaT, pd.NA, dropna, isnull, interpolate
Milestone
0.18.1

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@dershow
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dershow commented Jun 27, 2014

Currently Akima is not a valid interpolation method in Pandas. However scipy does have Akima1Dinterpolator. As Pandas uses SciPy for doing interpolation, adding the Akima method to pandas should be easy.
@jreback
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jreback commented Jun 27, 2014

sure, requires scipy >= 0.14.0 though.

@jreback jreback added this to the 0.15.0 milestone Jun 27, 2014
@dershow
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dershow commented Jun 27, 2014

It looks like for the pchip interpolate that pandas just does a check to verify that it is there, and otherwise reports that scipy doesn't support it.

@jreback jreback modified the milestones: 0.16.0, Next Major Release Mar 6, 2015
@stahlous stahlous mentioned this issue Oct 31, 2015
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@gliptak gliptak mentioned this issue Apr 9, 2016
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@jreback jreback modified the milestones: 0.18.1, Next Major Release Apr 10, 2016
@dershow
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dershow commented Jun 1, 2018

I was just doing some work that involved using the Akima interpolation function and it is not working as I would expect. I created a ticket with an example #21276
Any idea what might be going on here?

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Enhancement Missing-data np.nan, pd.NaT, pd.NA, dropna, isnull, interpolate
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0.18.1
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Implement Akima1DInterpolator
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@jreback @dershow