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[MRG] Simplify addition of point (0, 0) in roc_curve#13523

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adrinjalali merged 2 commits intoscikit-learn:masterfrom
wdevazelhes:simplify_roc_curve
Mar 28, 2019
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[MRG] Simplify addition of point (0, 0) in roc_curve#13523
adrinjalali merged 2 commits intoscikit-learn:masterfrom
wdevazelhes:simplify_roc_curve

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@wdevazelhes
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After the modification of #10093, I think we can simplify the code because it's forced that we pass in one of the case tested by the "if":

  • if we have tps.size == 0 then we pass in it
  • otherwise, we have at least one element in tps and one element in fps (tps and fps have the same size)
    Then the first point is the first classified positive so it's either a true positive or a false positive. So I think we should pass in the "if" statement in any case

@wdevazelhes wdevazelhes changed the title first commit [WIP] Simplify addition of point (0, 0) in roc_curve Mar 26, 2019
@wdevazelhes wdevazelhes changed the title [WIP] Simplify addition of point (0, 0) in roc_curve [MRG] Simplify addition of point (0, 0) in roc_curve Mar 26, 2019
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@jnothman jnothman left a comment

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Makes sense

tps = np.r_[0, tps]
fps = np.r_[0, fps]
thresholds = np.r_[thresholds[0] + 1, thresholds]
# Add an extra threshold position if necessary
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I guess then remove the "if necessary" part?

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@wdevazelhes wdevazelhes Mar 28, 2019

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That's right, thanks ! Done

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@adrinjalali adrinjalali left a comment

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Thanks @wdevazelhes

@adrinjalali adrinjalali merged commit 0a0db97 into scikit-learn:master Mar 28, 2019
xhluca pushed a commit to xhluca/scikit-learn that referenced this pull request Apr 28, 2019
xhluca pushed a commit to xhluca/scikit-learn that referenced this pull request Apr 28, 2019
xhluca pushed a commit to xhluca/scikit-learn that referenced this pull request Apr 28, 2019
koenvandevelde pushed a commit to koenvandevelde/scikit-learn that referenced this pull request Jul 12, 2019
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3 participants