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.ix/.loc methods are *significantly* slower when upgrading pandas from 0.13 to 0.16.2 #11151

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vgoklani opened this issue Sep 19, 2015 · 3 comments
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.ix/.loc methods are *significantly* slower when upgrading pandas from 0.13 to 0.16.2 #11151

vgoklani opened this issue Sep 19, 2015 · 3 comments
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Indexing Related to indexing on series/frames, not to indexes themselves Performance Memory or execution speed performance

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@vgoklani
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We ran a profiler comparing both the .ix and .loc methods for pandas, in both versions, and got substantially slower results when using 0.16.2. Why is that?
@TomAugspurger
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Do you have a small reproducible example that shows the slowdown?

@jreback
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jreback commented Sep 20, 2015

see a discussion #7493

@jreback jreback added Indexing Related to indexing on series/frames, not to indexes themselves Performance Memory or execution speed performance labels Sep 21, 2015
@jreback
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jreback commented Sep 21, 2015

well, if you have an example post it.

@jreback jreback closed this as completed Sep 21, 2015
@jreback jreback mentioned this issue Nov 11, 2015
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@vgoklani @jreback @TomAugspurger