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TST: add test for pd.melt category preservation #29510

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ganevgv
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@ganevgv ganevgv commented Nov 9, 2019

@ganevgv ganevgv force-pushed the tests/add_test_melt_conserves_categorical branch from bd440f2 to 4caf595 Compare November 9, 2019 15:08
@mroeschke mroeschke added Categorical Categorical Data Type Reshaping Concat, Merge/Join, Stack/Unstack, Explode Testing pandas testing functions or related to the test suite labels Nov 9, 2019
@mroeschke mroeschke added this to the 1.0 milestone Nov 9, 2019
@WillAyd WillAyd merged commit 3150962 into pandas-dev:master Nov 9, 2019
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WillAyd commented Nov 9, 2019

Thanks @ganevgv

keechongtan added a commit to keechongtan/pandas that referenced this pull request Nov 11, 2019
…ndexing-1row-df

* upstream/master: (109 commits)
  stronger typing in libreduction (pandas-dev#29502)
  API: rename labels to codes (pandas-dev#29509)
  CLN: remove unnecessary type checks (pandas-dev#29517)
  implement _BaseGrouper (pandas-dev#29520)
  CLN: F-string formatting in pandas/_libs/*.pyx (pandas-dev#29527)
  Fixed more SS03 errors (pandas-dev#29540)
  consolidate dim checks (pandas-dev#29536)
  REF: separate out _get_cython_func_and_vals (pandas-dev#29537)
  remove unnecessary exception (pandas-dev#29538)
  TST:Add test to check single category col returns series with single row slice (pandas-dev#29521)
  Make color validation more forgiving (pandas-dev#29122)
  DOC: update bottleneck repo and documentation urls (pandas-dev#29516)
  TST: add test for df construction from dict with tuples (pandas-dev#29497)
  add test for pd.melt dtypes preservation (pandas-dev#29510)
  updated DataFrame.equals docstring (pandas-dev#29496)
  Resolved merge conflicts (pandas-dev#29506)
  DOC: Improved pandas/compact/__init__.py (pandas-dev#29507)
  DOC: Update performance comparison section of io docs (pandas-dev#28890)
  TST: add test for df.where() with category dtype (pandas-dev#29454)
  DOC: Fix docs on merging categoricals. (pandas-dev#28185)
  ...
Reksbril pushed a commit to Reksbril/pandas that referenced this pull request Nov 18, 2019
proost pushed a commit to proost/pandas that referenced this pull request Dec 19, 2019
proost pushed a commit to proost/pandas that referenced this pull request Dec 19, 2019
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BUG: melt should preserve Categorical id_vars
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