BUG: value_counts can handle the case even with empty groups (#28479) #28608
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…dev#28479) * If applying rep to recons_labels go fail, use ids which has no consecutive duplicates instead.
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Why did they go fail..?? I have never changed any contents of test_categorical.py though... and apart from me, he also has the same problem. #28595 Is there any problem with CI now? |
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I closed this issue because of CI issues |
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consecutive duplicates instead.
black pandasgit diff upstream/master -u -- "*.py" | flake8 --diffxuancong84 found that value_counts() crashes if
groupbyobject contains empty groups.However, even though I made the construction of DataFrame don't skip empty rows, it still crashed.
Till then, I already tried in many ways though, in this time I tried to correct the callee
self.grouper.recons_labels. After several tests, I found that If freq ofGrouperis too long so that it has empty groups in some periods then it crashes. And also have found that this is solved by usingidswhich has no consecutive duplicates instead ofself.grouper.recons_labels.