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TST: Test pd.Grouper base floating point error (#25161) #26240

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Merged
merged 6 commits into from
May 2, 2019
Merged

TST: Test pd.Grouper base floating point error (#25161) #26240

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da71a45
TST: Test pd.Grouper base floating point error (#25161)
ihsansecer Apr 29, 2019
f993901
TST: Create a new function for testing grouper base (#25161)
ihsansecer Apr 29, 2019
1c2175d
TST: Clarify the test using literal values (#26240)
ihsansecer Apr 29, 2019
11485fb
TST: Move test to resample/test_datetime_index and rename (#25161)
ihsansecer May 1, 2019
3b6d5f4
TST: Clarify resample float base test (#25161)
ihsansecer May 1, 2019
913dd1c
TST: Test if whole Series is as expected (#25161)
ihsansecer May 2, 2019
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13 changes: 13 additions & 0 deletions pandas/tests/resample/test_datetime_index.py
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Original file line number Diff line number Diff line change
Expand Up @@ -751,6 +751,19 @@ def test_resample_base():
tm.assert_index_equal(resampled.index, exp_rng)


def test_resample_float_base():
# GH25161
dt = pd.to_datetime(["2018-11-26 16:17:43.51",
"2018-11-26 16:17:44.51",
"2018-11-26 16:17:45.51"])
s = Series(np.arange(3), index=dt)

base = 17 + 43.51 / 60
resampled = s.resample("3min", base=base).mean()
exp_index = DatetimeIndex(["2018-11-26 16:17:43.51"])
tm.assert_index_equal(resampled.index, exp_index)


def test_resample_daily_anchored():
rng = date_range('1/1/2000 0:00:00', periods=10000, freq='T')
ts = Series(np.random.randn(len(rng)), index=rng)
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