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Fixed pct_change with 'fill_method' returning NaN instead of 0 #19875

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merged 7 commits into from
Feb 25, 2018

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@WillAyd WillAyd commented Feb 24, 2018

def test_pct_change(self, periods, fill_method, limit, exp):
obj = self._construct(0)
if type(obj) is Panel:
pytest.skip("Not testing deprecated Panel")
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just add this method to the Panel section and it will skip automatically

@WillAyd WillAyd changed the title Pct change fill Fixed pct_change with 'fill_method' returning NaN instead of 0 Feb 24, 2018
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codecov bot commented Feb 24, 2018

Codecov Report

Merging #19875 into master will decrease coverage by 0.03%.
The diff coverage is 100%.

Impacted file tree graph

@@            Coverage Diff             @@
##           master   #19875      +/-   ##
==========================================
- Coverage   91.68%   91.64%   -0.04%     
==========================================
  Files         150      150              
  Lines       48915    48946      +31     
==========================================
+ Hits        44847    44856       +9     
- Misses       4068     4090      +22
Flag Coverage Δ
#multiple 90.02% <100%> (-0.04%) ⬇️
#single 41.81% <0%> (-0.02%) ⬇️
Impacted Files Coverage Δ
pandas/core/generic.py 95.88% <100%> (-0.05%) ⬇️
pandas/plotting/_converter.py 65.22% <0%> (-1.74%) ⬇️
pandas/core/indexes/timedeltas.py 90.63% <0%> (-0.32%) ⬇️
pandas/core/indexes/datetimelike.py 97.13% <0%> (-0.25%) ⬇️
pandas/core/indexes/period.py 92.7% <0%> (-0.17%) ⬇️
pandas/core/indexes/datetimes.py 95.47% <0%> (-0.15%) ⬇️
pandas/core/config.py 87.04% <0%> (-0.13%) ⬇️
pandas/core/frame.py 97.18% <0%> (-0.06%) ⬇️
pandas/core/apply.py 96.77% <0%> (+0.03%) ⬆️

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func = getattr(obj, 'pct_change')
res = func(periods=periods, fill_method=fill_method, limit=limit)

# Convert output into Series, regardless of input type
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if you rename obj above, you can simply determine the output down here, and make this a bit less convoluted, e.g.

if type(obj) is DataFrame:
    # compare dataframe
else:
   # compare series

@jreback jreback added Bug Missing-data np.nan, pd.NaT, pd.NA, dropna, isnull, interpolate labels Feb 24, 2018
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WillAyd commented Feb 25, 2018

Failed Travis tests don't appear related to the change

@jreback jreback added this to the 0.23.0 milestone Feb 25, 2018
@jreback jreback merged commit fb54f40 into pandas-dev:master Feb 25, 2018
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jreback commented Feb 25, 2018

thanks @WillAyd

@WillAyd WillAyd deleted the pct-change-fill branch May 14, 2018 21:11
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Series 'pct_change' with 'fill_method' broken
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