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Change sum/mean/count/std/var/etc. to use bottleneck if available #91

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wesm opened this issue Aug 7, 2011 · 0 comments
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Change sum/mean/count/std/var/etc. to use bottleneck if available #91

wesm opened this issue Aug 7, 2011 · 0 comments
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@wesm
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wesm commented Aug 7, 2011

bottleneck.{nan*} methods are much faster than the pure Python/NumPy versions inside DataFrame, for example.

@wesm wesm closed this as completed Jan 12, 2012
dan-nadler pushed a commit to dan-nadler/pandas that referenced this issue Sep 23, 2019
@wxinl wxinl mentioned this issue Oct 20, 2021
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