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BUG: Allow freq conversion from dt64 to period #23460

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merged 1 commit into from Nov 3, 2018

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TomAugspurger
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Closes #23438

In the PeriodArray refactor, I disallowed changing freq when converting from datetime64 to period. I didn't realize that was supported.

cc @thequackdaddy, does this close all the issues you ran into?

@TomAugspurger TomAugspurger added Timeseries Period Period data type labels Nov 2, 2018
@TomAugspurger TomAugspurger added this to the 0.24.0 milestone Nov 2, 2018
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codecov bot commented Nov 2, 2018

Codecov Report

Merging #23460 into master will increase coverage by <.01%.
The diff coverage is 100%.

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@@            Coverage Diff             @@
##           master   #23460      +/-   ##
==========================================
+ Coverage   92.22%   92.23%   +<.01%     
==========================================
  Files         161      161              
  Lines       51187    51179       -8     
==========================================
- Hits        47209    47204       -5     
+ Misses       3978     3975       -3
Flag Coverage Δ
#multiple 90.61% <100%> (ø) ⬆️
#single 42.26% <0%> (ø) ⬆️
Impacted Files Coverage Δ
pandas/core/arrays/period.py 98.08% <100%> (+0.59%) ⬆️

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msg = DIFFERENT_FREQ_INDEX.format(freq.freqstr, data.freq.freqstr)
raise IncompatibleFrequency(msg)
data = data._values
freq = Period._maybe_convert_freq(freq)
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Not necessarily for this PR, but it isn't obvious when to use this versus just to_offset. Should be clarified and possibly de-duplicated. (and i think de-method-ed)

@jreback jreback merged commit e0e948d into pandas-dev:master Nov 3, 2018
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jreback commented Nov 3, 2018

thanks @TomAugspurger

@jbrockmendel if you want to make an issue / note about the de-duplication would be great.

thoo added a commit to thoo/pandas that referenced this pull request Nov 3, 2018
…xamples

* repo_org/master: (66 commits)
  CLN: doc string (pandas-dev#23469)
  DOC: Add cookbook entry for triangular correlation matrix (GH22840) (pandas-dev#23032)
  add number of Errors, Warnings to scripts/validate_docstrings.py (pandas-dev#23150)
  BUG: Allow freq conversion from dt64 to period (pandas-dev#23460)
  ENH: Add FrozenList.union and .difference (pandas-dev#23394)
  REF: cython cleanup, typing, optimizations (pandas-dev#23464)
  strictness and checks for Timedelta _simple_new (pandas-dev#23433)
  Fixing flake8 problems new to flake8 3.6.0 (pandas-dev#23472)
  DOC: Updating the docstring of Series.dot  (pandas-dev#22890)
  TST: Fixturize series/test_analytics.py (pandas-dev#22755)
  BUG/ENH: Handle NonexistentTimeError in date rounding (pandas-dev#23406)
  PERF: speed up concat on Series by making _get_axis_number() a classmethod (pandas-dev#23404)
  REF: Remove DatetimelikeArrayMixin._shallow_copy (pandas-dev#23430)
  REF: strictness/simplification in DatetimeArray/Index _simple_new (pandas-dev#23431)
  REF: cython cleanup, typing, optimizations (pandas-dev#23456)
  TST: tweak Hypothesis configuration and idioms (pandas-dev#23441)
  BUG: fix HDFStore.append with all empty strings error (GH12242) (pandas-dev#23435)
  TST: Skip 32bit failing IntervalTree tests (pandas-dev#23442)
  BUG: Deprecate nthreads argument (pandas-dev#23112)
  style: fix import format at pandas/core/reshape (pandas-dev#23387)
  ...
JustinZhengBC pushed a commit to JustinZhengBC/pandas that referenced this pull request Nov 14, 2018
tm9k1 pushed a commit to tm9k1/pandas that referenced this pull request Nov 19, 2018
Pingviinituutti pushed a commit to Pingviinituutti/pandas that referenced this pull request Feb 28, 2019
Pingviinituutti pushed a commit to Pingviinituutti/pandas that referenced this pull request Feb 28, 2019
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Converting series of dates to Periods
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