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SettingWithCopyWarning on Regression runs #120

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AndreRicoPSU opened this issue Feb 7, 2023 · 1 comment
Closed

SettingWithCopyWarning on Regression runs #120

AndreRicoPSU opened this issue Feb 7, 2023 · 1 comment

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@AndreRicoPSU
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@AndreRicoPSU
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AndreRicoPSU commented Feb 7, 2023 •
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When running association analyses in debug environment, python generates warnings for improvements. When searching the two links below, the warning point was located at the moment when it was updating the data for regression without invalid categories.

  1. API: raise/warn SettingWithCopy when chained assignment is detected pandas-dev/pandas#5390
  2. spurious SettingWithCopyWarning  pandas-dev/pandas#5597

The correction was just changing the way of assigning new data with .loc

{utilities.py}
# GITHUB ISSUE #120: SettingWithCopyWarning on Regression runs
# data[var] = data[var].cat.remove_unused_categories()
data.loc[:, var] = data[var].cat.remove_unused_categories()

release 3.2.1

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