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PERF: perf improvements for Series.transform (revised) (GH6496) #7975

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Merged
merged 1 commit into from
Aug 10, 2014
Merged

PERF: perf improvements for Series.transform (revised) (GH6496) #7975

merged 1 commit into from
Aug 10, 2014

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@jreback jreback commented Aug 10, 2014

xref #6496

Additional perf improvements for Series.transform (when specifying cythonizable functions)

-------------------------------------------------------------------------------
Test name                                    | head[ms] | base[ms] |  ratio   |
-------------------------------------------------------------------------------
groupby_transform_series2                    |  98.7293 | 3621.1437 |   0.0273 |
groupby_transform2                           |  19.5080 | 168.8046 |   0.1156 |

@jreback jreback added this to the 0.15.0 milestone Aug 10, 2014
jreback added a commit that referenced this pull request Aug 10, 2014
@jreback
Merge pull request #7975 from jreback/transform_perf
4eb5e51 
PERF: perf improvements for Series.transform (revised) (GH6496)
@jreback jreback merged commit 4eb5e51 into pandas-dev:master Aug 10, 2014
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