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PERF: pct_change perf / cleanup up NDFrame.slice_Shift #6995

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jreback opened this issue Apr 28, 2014 · 0 comments
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PERF: pct_change perf / cleanup up NDFrame.slice_Shift #6995

jreback opened this issue Apr 28, 2014 · 0 comments
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Internals Related to non-user accessible pandas implementation Performance Memory or execution speed performance

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jreback commented Apr 28, 2014

see #6974

for Panel

  • like to remove NDFrame.slice_shift and roll it into the Block itself as a bit cleaner
  • see if can fix pct_change perf as its doing a isnull on by slice; maybe can just do that once then slice the mask
@jreback jreback added this to the 0.14.1 milestone Apr 28, 2014
@jreback jreback modified the milestones: 0.15.0, 0.14.1 Jun 17, 2014
@jreback jreback modified the milestones: 0.16.0, Next Major Release Mar 6, 2015
@jschendel jschendel modified the milestones: Contributions Welcome, No action Jul 6, 2018
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