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https://api.github.com/repos/pandas-dev/pandas/issues/13204
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155,284,017
MDU6SXNzdWUxNTUyODQwMTc=
13,204
groupby with index = False returns NANs when column is categorical.
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4
2016-05-17T15:07:21Z
2016-07-03T23:28:31Z
2016-07-03T23:28:31Z
NONE
null
Please see stackoverflow for example of issue http://stackoverflow.com/questions/37279260/why-doesnt-pandas-allow-a-categorical-column-to-be-used-in-groupby?noredirect=1#comment62084780_37279260 ``` >>> pd.__version__ '0.18.1' >>> # import the pandas module import pandas as pd # Create an example dataframe raw_dat...
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22
2016-05-17T15:46:18Z
2016-06-14T14:08:55Z
2016-06-14T13:53:54Z
MEMBER
null
- [x] closes #12309 - [x] tests added / passed - [x] passes `git diff upstream/master | flake8 --diff` - [x] whatsnew entries: name passing, unsupported `dtype`s, `copy=true` for `DateTimeIndex` This is a rebased & updated version of #12331 I would say the [last commit](https://github.com/pydata/pandas/pull/13205/com...
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155,300,875
MDU6SXNzdWUxNTUzMDA4NzU=
13,206
BUG: Quote table names in to_sql
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10
2016-05-17T16:15:24Z
2019-05-01T20:07:48Z
2017-06-07T20:53:48Z
NONE
null
``` python xl.to_sql(con=conn, name='d1187b08-4943-4c8d-a7f6-6c06b7cb9509', flavor='mysql', if_exists='replace') Traceback (most recent call last): File "<input>", line 1, in <module> File "C:\Dev\Project\www\venv\project\lib\site-packages\pandas\core\generic.py", line 1165, in to_sql chunksize=chunksize, dtype...
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155,338,716
MDU6SXNzdWUxNTUzMzg3MTY=
13,207
BUG: Index doesn't have an .empty attribute
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4
2016-05-17T19:14:01Z
2017-03-28T19:10:59Z
2017-03-28T19:10:59Z
CONTRIBUTOR
null
#### Code Sample, a copy-pastable example if possible ``` python In [108]: i = pd.Index([]) In [109]: bool(i) --------------------------------------------------------------------------- ValueError Traceback (most recent call last) <ipython-input-109-43b3c3723ad4> in <module>() ----> 1 b...
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https://api.github.com/repos/pandas-dev/pandas/issues/13208
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155,364,158
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13,208
Series __finalized__ not correctly called in binary operators
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12
2016-05-17T21:17:29Z
2020-12-07T08:17:00Z
2020-01-07T23:45:41Z
NONE
null
``` #!/bin/env python """ Example bug in derived Pandas Series. __finalized__ is not called in arithmetic binary operators, but it is in in some booleans cases. >>> m = MySeries([1, 2, 3], name='test') >>> m.x = 42 >>> n=m[:2] >>> n 0 1 1 2 dtype: int64 >>> n.x 42 >>> o=n+1 >>> o 0 2 1 3 dtype: int64 >>> ...
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155,367,899
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13,209
BUG: Fix #13149 and ENH: 'copy' param in Index.astype()
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12
2016-05-17T21:36:03Z
2016-05-24T00:32:35Z
2016-05-23T20:45:45Z
CONTRIBUTOR
null
- [x] closes #13149 - [x] tests added / passed - [x] passes `git diff upstream/master | flake8 --diff` - [x] whatsnew entry **Update** 1. Float64Index.astype(int) raises ValueError if a NaN is present. Previously, it converted NaN's to the smallest negative integer. 2. TimedeltaIndex.astype(int) and DatetimeIndex....
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155,371,744
MDU6SXNzdWUxNTUzNzE3NDQ=
13,210
Pandas .read_sql_table() not reading a table which SQLalchemy can find
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12
2016-05-17T21:55:33Z
2017-09-19T13:46:29Z
2016-05-18T09:36:39Z
NONE
null
I am running the following code (**pandas 0.18.0, sqlalchemy 1.0.12**): `skus = pd.read_sql_table('ads_skus', SQLALCHEMY_CONN, schema='a')` I receive the error: `ValueError: Table ads_skus not found` However, if I run: ``` i = inspect(SQLALCHEMY_CONN) for table_name in i.get_table_names(schema='a'): print(t...
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13,211
ValueError: invalid literal for float(): 25:13:15
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9
2016-05-18T02:24:34Z
2016-05-19T00:39:03Z
2016-05-18T12:38:20Z
NONE
null
Hi, I am running my own dataset with scikit-learn. My dataset contains '2016/02/28', '20:12:22', '100' and 'string', Date, time, integer and string. I have successfully parsed the data with Pandas and have reached CLF using SVM to test out. However, upon clf.fit(X, y), an error was returned ValueError: invalid literal...
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155,418,031
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13,212
Empty DataFrame with PeriodIndex doesn't maintain index type on resample
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0
2016-05-18T05:13:41Z
2016-05-21T14:12:53Z
2016-05-21T14:12:53Z
CONTRIBUTOR
null
ref: https://github.com/pydata/pandas/pull/13079#discussion_r63645752 ``` python In [5]: pd.DataFrame(index=pd.PeriodIndex([],freq='D')).resample('M').mean().index Out[5]: Index([], dtype='object') ```
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155,491,787
MDU6SXNzdWUxNTU0OTE3ODc=
13,213
json_normalize() can't deal with non-ascii characters in unicode keys
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0
2016-05-18T12:43:27Z
2016-05-19T13:14:51Z
2016-05-19T13:14:46Z
CONTRIBUTOR
null
Example code: ``` python import pandas import json testjson = u''' [{"Ünicøde":0,"sub":{"A":1, "B":2}}, {"Ünicøde":1,"sub":{"A":3, "B":4}}] '''.encode('utf8') pd.io.json.json_normalize(json.loads(testjson)) ``` Output: ``` Traceback (most recent call last): File "...lib/python2.7/site-packages/IPython/core/inte...
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MDExOlB1bGxSZXF1ZXN0NzA1MjIwMzY=
13,214
BUG: Fix #13213 json_normalize() and non-ascii characters in keys
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2016-05-18T12:52:14Z
2016-05-19T13:35:41Z
2016-05-19T13:14:46Z
CONTRIBUTOR
null
- [ ] closes #13213 - [ ] tests added / passed - [ ] passes `git diff upstream/master | flake8 --diff` - [ ] whatsnew entry
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155,493,879
MDExOlB1bGxSZXF1ZXN0NzA1MjIyNTI=
13,215
Bug Fix for #13207. Added empty attribute for Index
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2016-05-18T12:53:45Z
2016-05-18T13:28:23Z
2016-05-18T13:28:23Z
CONTRIBUTOR
null
- [x] closes #13207 - [x] tests added / passed - [x] passes `git diff upstream/master | flake8 --diff` - [x] whatsnew entry
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MDExOlB1bGxSZXF1ZXN0NzA1Mjk0Mjg=
13,216
BUG: DataFrame.align bug with join keyword (GH13914)
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2016-05-18T13:40:42Z
2017-02-01T20:48:01Z
2017-02-01T20:48:01Z
CONTRIBUTOR
null
- [x] closes #13194 - [x] tests added / passed - [x] passes `git diff upstream/master | flake8 --diff` - [x] whatsnew entry
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155,530,966
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13,217
BUG: groupby, as_index=False still returning group variable as index
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2016-05-18T15:25:39Z
2021-05-12T13:27:56Z
2021-05-12T13:27:56Z
CONTRIBUTOR
null
#### Code Sample, a copy-pastable example if possible ``` a = pd.DataFrame({'a':[1,1,2,2], 'b':[1,1,2,2], 'c':[1,1,1,1]}) a.groupby(['a','b'], as_index=False).apply(lambda x: 1) Out[4]: a b 1 1 1 2 2 1 dtype: int64 ``` #### Expected Output ``` Out[4]: 0 1 1 1 dtype: int64 ``` (this is what you get w...
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155,542,027
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13,218
loffset doesn't work in resample if used with agg()
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5
2016-05-18T16:10:15Z
2016-12-31T16:56:53Z
2016-12-31T16:56:53Z
NONE
null
#### Code Sample, a copy-pastable example if possible ``` # Create DF df = pd.DataFrame(np.random.rand(5,2), columns=list('AB'), index=pd.date_range('2010-01-01 09:00:00', periods=5, freq='s')) print(df) A B 2010-01-01 09:00:00 0.283113 ...
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13,219
Unicode not acceptable input for `usecols` kwarg in `read_csv()`
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4
2016-05-18T16:35:22Z
2016-10-14T17:29:00Z
2016-06-01T11:13:41Z
NONE
null
I caught this bug while updating from version 0.18.0 to 0.18.1. The kwarg `usecols` no longer accepts unicode column labels. Example below: ``` python from io import StringIO import pandas as pd s = u'''AAA,BBB,CCC,DDD 0.056674973,8,True,a 2.613230982,2,False,b 3.568935038,7,False,a ''' buff = StringIO(s) print pd.r...
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155,557,323
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13,220
BUG: .transform('size') should be the same as .transform(len)
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12
2016-05-18T17:22:25Z
2019-10-18T01:07:39Z
2019-10-18T01:07:38Z
NONE
null
``` import pandas as pd N = 6 df = pd.DataFrame(data={"size":[0.1]*N, "group":[None]*N}, index=range(N)) gb = df.groupby(by=['group']) d2 = gb.transform('sum') print d2 ``` #### Expected Output ``` # not actually sure what should be returned, perhaps just the origi...
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13,221
COMPAT: concat of PeriodIndex
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2016-05-18T17:24:41Z
2018-10-26T08:41:52Z
2018-10-25T13:31:37Z
CONTRIBUTOR
null
https://github.com/pydata/pandas/blob/master/pandas/tseries/period.py#L920 `return Index(com._concat_compat(to_concat), name=name)` now should reference `pandas.types.concat._concat_compat` I _think_ this should probably fail - concat-ing a `PeriodIndex` with other index types?
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13,222
style apply of rows fails for subset list, but works for single row?
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11
2016-05-18T17:42:27Z
2016-06-18T21:26:02Z
2016-06-18T21:26:02Z
NONE
null
#### Code Sample, a copy-pastable example if possible ``` df = pd.DataFrame([["A", 1],["B", 2]], columns=["Letter", "Number"]) def highlight(s): return ['background-color: yellow'] df.style.apply(highlight, axis=0, subset=[0]) --------------------------------------------------------------------------- KeyError ...
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155,610,891
MDU6SXNzdWUxNTU2MTA4OTE=
13,223
Resampling with NaT in TimedeltaIndex raises MemoryError
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1
2016-05-18T21:56:12Z
2018-08-09T10:33:35Z
2018-08-09T10:33:34Z
CONTRIBUTOR
null
`DatetimeIndex` can handle `NaT`: ``` In [2]: dti = pd.DatetimeIndex(['1970-01-01 00:00:00', pd.NaT, '1970-01-01 00:00:02']) In [3]: pd.DataFrame([2, 3, 5], dti).resample('1s').mean() Out[3]: 0 1970-01-01 00:00:00 2.0 1970-01-01 00:00:01 NaN 1970-01-01 00:00:02 5.0 ``` But `TimedeltaIndex`...
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13,224
Resampling with NaT in PeriodIndex raises ValueError
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1
2016-05-18T21:58:15Z
2017-10-01T14:55:33Z
2017-10-01T14:55:33Z
CONTRIBUTOR
null
`PeriodIndex` can't handle `NaT`: ``` In [2]: pi = pd.PeriodIndex(['1970-01-01 00:00:00', pd.NaT, '1970-01-01 00:00:02'], freq='S') In [3]: pd.DataFrame([2, 3, 5], pi).resample('1s').mean() ... ValueError: Start and end must not be NaT ``` But `DatetimeIndex` obtained from `PeriodIndex` can: ``` In [4]: pd.DataFram...
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155,638,167
MDExOlB1bGxSZXF1ZXN0NzA2MjYwMTY=
13,225
DOC/API: Styler documentation changes
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12
2016-05-19T01:48:21Z
2017-04-05T02:06:51Z
2016-06-18T21:26:02Z
CONTRIBUTOR
null
Closes https://github.com/pydata/pandas/issues/13222, #13225 - Update docstring and notebook on output shapes matching - Change build process to use nbconvert to execute the notebook and then convert using NBConvert. Second commit puts some more restrictions on the output of a user's function passed to `.apply`.
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155,690,513
MDU6SXNzdWUxNTU2OTA1MTM=
13,226
SettingWithCopyWarning while using .loc
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6
2016-05-19T09:21:19Z
2021-04-30T05:30:53Z
2021-04-30T05:30:53Z
NONE
null
#### Code Sample, a copy-pastable example if possible ``` df = pd.DataFrame(np.random.randn(6,4), columns=list('ABCD')) # In ipython-notebook, I'm now just looking at the DF by calling it. This seems to create a view of the DF? If df is not called, the warning doesn't show. It will also show when doing x = df for exa...
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155,699,572
MDU6SXNzdWUxNTU2OTk1NzI=
13,227
Inconsistent default date ticks for data at different frequencies
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3
2016-05-19T10:05:00Z
2021-04-30T05:36:23Z
2021-04-30T05:36:23Z
NONE
null
When the data indexed with datetime are plotted via DataFrame.plot(), the default date ticks behave inconsistently depending on the frequency of the data index. Here's a [short notebook](https://gist.github.com/marcinbielecki/9a8c1e3f7900a4761202769aecf746e0) that reproduces the issue. The data at daily, weekly and an...
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155,753,871
MDU6SXNzdWUxNTU3NTM4NzE=
13,228
Using str() in .map() on floats gives string with higher precision than before
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2016-05-19T14:41:19Z
2020-01-07T23:45:41Z
2020-01-07T23:45:41Z
NONE
null
#### Code Sample, a copy-pastable example if possible ``` # In 0.17.1: x = pd.Series(1/3) x.map(lambda x: str(x)).to_dict() {0: '0.333333333333'} x.astype(str).map(lambda x: x).to_dict() {0: '0.333333333333'} # In 0.18.1: x = pd.Series(1/3) x.map(lambda x: str(x)).to_dict() {0: '0.3333333333333333'} x.astype(str)....
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155,771,182
MDU6SXNzdWUxNTU3NzExODI=
13,229
DOC: sas & R functionaility
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4
2016-05-19T15:49:59Z
2021-04-15T06:49:37Z
2021-04-15T06:49:28Z
CONTRIBUTOR
null
http://blog.dominodatalab.com/using-r-and-python-for-common-sas-functions/?utm_source=&utm_medium=&utm_campaign= might be interesting to update `comparison_with_SAS/R` with this.
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155,799,966
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13,230
Different order in datetime-column using sort_values on multiple columns
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2016-05-19T18:09:42Z
2020-01-07T23:45:40Z
2020-01-07T23:45:40Z
NONE
null
#### Code Sample, a copy-pastable example if possible ``` #0.17.1: df = pd.DataFrame([1,2,3,4,5], columns=list('A'), index=pd.date_range('2010-01-01 09:00:00', periods=5, freq='s')).reset_index() df['date'] = df['index'] del df['index'] df.loc[4,'A'] = 4 df.loc[4,'date'] = pd.NaT print(df.sort_values(['A','date'])) ...
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155,804,314
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13,231
Automatic detection of HDF5 dataset identifier fails when data contains categoricals
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14
2016-05-19T18:31:16Z
2016-06-05T14:08:12Z
2016-06-05T14:08:12Z
CONTRIBUTOR
null
We use HDF5 to store our pandas dataframes on disk. We only store one dataframe per HDF5, so the feature of pandas.read_hdf() that allows omitting the key when a HDF file contains a single Pandas object is very nice for our workflow. However, said feature doesn't work when the dataframe saved contains one or more cate...
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155,832,725
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13,232
PeriodIndex with float input inconsistency
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2016-05-19T20:54:42Z
2017-03-04T21:15:37Z
2017-03-04T21:15:37Z
MEMBER
null
#### Code Sample, a copy-pastable example if possible ``` pd.PeriodIndex([1.1], freq='M') # ValueError: Given date string not likely a datetime. pd.PeriodIndex(np.array([1.1]), freq='M') # PeriodIndex(['1970-02'], dtype='int64', freq='M' ``` #### Expected Output Consistently raise or coerce to `Period` #### output o...
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155,839,413
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13,233
BUG: GH13219 Fixed. Allow unicode values in usecol
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2016-05-19T21:27:26Z
2016-06-01T11:13:44Z
2016-06-01T11:13:41Z
CONTRIBUTOR
null
- [x] closes #13219 - [x] tests added / passed - [x] passes `git diff upstream/master | flake8 --diff` - [x] whatsnew entry This is my first time contributing to this project. Let me know what needs to be improved, especially with regards to the test and the bugfix. It was simpler than I imagined which makes me wan...
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13,234
Correct ValueError invalid type promotion exception
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2016-05-19T23:21:12Z
2016-05-23T13:05:48Z
2016-05-23T13:05:43Z
CONTRIBUTOR
null
- [x] closes #12599 - [x] tests added / passed - [x] passes `git diff upstream/master | flake8 --diff` - [x] whatsnew entry
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13,235
label keyword argument for resample causes an error when used with a groupby object
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2016-05-20T07:41:17Z
2016-05-25T12:14:52Z
2016-05-25T12:14:52Z
CONTRIBUTOR
null
#### Code Sample, a copy-pastable example if possible ``` Python import numpy as np import pandas as pd index = pd.date_range('2000-01-01', freq='2D', periods=5) df = pd.DataFrame(index=index, data={'col1':[0,0,1,1,2], 'col2':[1,1,1,1,1]}) df.groupby('col1').resample('1W', label='left').sum() ``` #### The dataframe ...
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155,922,105
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13,236
COMPAT: .map iterates over python types rather than storage type
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2016-05-20T09:27:17Z
2017-09-12T12:54:54Z
2017-09-12T12:54:54Z
NONE
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#### Code Sample, a copy-pastable example if possible ``` import pandas as P S=P.Series([0.6,0.2,15]) ``` **pandas 0.18+numpy 0.10**: ``` In [1]: print S.dtype float64 In [2]: print S.values.dtype float64 In [3]: print S.map(type) 0 <type 'numpy.float64'> 1 <type 'numpy.float64'> 2 <type 'numpy.float64'> ...
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13,237
cannot safely convert passed user dtype of <f8 for object dtyped data in column ***
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13
2016-05-20T12:37:21Z
2019-03-18T06:19:53Z
2016-05-20T12:49:25Z
NONE
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#### Code Sample, a copy-pastable example if possible under 64bit windows problem it's ok on win32 platform ,but it does not work under 64bit,unless I remove the dtype and read the DataFrame and then transform the format asfloat ... I cant debug into the file market_head_list = ['TradingDay','ClosePrice'] dt['Tr...
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155,971,896
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13,238
Resample discards timezone information
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2016-05-20T14:11:10Z
2018-04-11T02:29:55Z
2018-04-11T02:29:55Z
NONE
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It appears that resample is now dropping timezone information on the index. Is this expected? ``` a = pp.Series(index=pp.DatetimeIndex(['2013-01-01 06:00', '2013-01-01 07:00', '2013-01-02 06:00'], tz=pytz.timezone('America/Los_Angeles')), data=[1, 2, 3]) b = a.resampl...
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13,239
nunique Error when called by groupby from an empty dataframe
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2016-05-20T16:14:33Z
2016-05-20T16:32:58Z
2016-05-20T16:32:37Z
NONE
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Initialize a dataframe: (I am using pandas version 0.17.1) ``` import pandas as pd a=pd.DataFrame({'f':[1,2,3,4]}) ``` First if I call nunique from an empty dataframe, I get what I expect: ``` a[a['f']>10]['f'].nunique() 0 ``` But If I call nunique from groupby, I get an error: ``` a[a['f']>10].groupby('f')['f'].n...
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13,240
merge with series
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2016-05-20T17:45:35Z
2016-05-20T17:50:30Z
2016-05-20T17:49:55Z
NONE
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#### Code Sample, a copy-pastable example if possible a=pd.DataFrame({'f':[1,2,3,4]}) b=pd.DataFrame({'f':[2,3,4,5]}) ## pd.merge(a['f'],b,on='f') Traceback (most recent call last): File "<stdin>", line 1, in <module> File "/opt/ci1/plus/tc10b/sles11sp2_gcc-4.8.3_x86-64/PythonModules-2.7.8/20160310/lib/python/pan...
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13,241
Fixes resampler for grouping kw bug #13235
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3
2016-05-20T18:25:40Z
2016-05-25T12:15:02Z
2016-05-25T12:14:52Z
CONTRIBUTOR
null
- [x] closes #13235 - [x] tests added / passed - [x] passes `git diff upstream/master | flake8 --diff` - [x] whatsnew entry
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156,057,890
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13,242
TST: test_assert_index check index attributes
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7
2016-05-20T21:52:40Z
2020-05-22T03:13:30Z
2020-05-22T03:13:29Z
MEMBER
null
- [x] `PeriodIndex.freq` (mandatory), #13250 - [x] `DatetimeIndex.tz` (mandatory) - [x] `DatetimeIndex.freq` (add `check_freq` option with default False, because lots of tests compare op result (lost freq) and expected result created by `date_range` (has freq)) - [x] `TimedeltaIndex.freq` (same as above), #13250 - [x]...
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13,243
Idea: use df.index/df.columns names to automatically choose axis along which to broadcast
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2
2016-05-20T21:53:55Z
2016-05-24T20:06:27Z
2016-05-24T20:06:27Z
NONE
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In writing some math code in pandas, I find it necessary to do things like ``` df2 = df.sub(ser, axis='columns') ``` instead of the shorter and more intuitive ``` df2 = df - ser ``` in order to control the axis along which the series is broadcast. I think it would be a big improvement syntactically if pandas woul...
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13,244
Fix to_gbq method when verbose=False
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2016-05-20T22:13:53Z
2016-08-15T20:19:42Z
2016-08-15T20:19:33Z
CONTRIBUTOR
null
Currently the `to_gbq` method fails when `verbose=False`, as the printing of progress is done regardless of the value of the `verbose` flag, and therefore `total_rows` gets called without being set. This change suppresses printing of progress when `verbose=False`.
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156,065,178
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13,245
Pandas incorrectly parses maturity code for yahoo options
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2016-05-20T22:53:37Z
2016-05-20T23:33:52Z
2016-05-20T23:33:45Z
NONE
null
Pandas's option.get_all_data incorrectly parses the maturity dates for all options, so 2017 options from Yahoo will be parsed to 2020 option. This is because a problem logic to use to_datetime() to convert the date string. A simple and practical fix is to append "20" in front of the string before calling to_datetime(...
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13,246
Reverse numpy compat changes to tslib.pyx
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2016-05-21T01:19:16Z
2016-05-21T14:05:21Z
2016-05-21T14:05:17Z
MEMBER
null
Title is self-explanatory. xref #13148.
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13,247
BUG: upcasting on reshaping ops
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6
2016-05-21T05:34:17Z
2017-03-14T13:33:58Z
2017-03-14T13:33:58Z
CONTRIBUTOR
null
#### Code Sample, a copy-pastable example if possible ``` import pandas as pd import numpy as np pn1 = pd.Panel(np.array([1.0], dtype=np.float32, ndmin=3)) # panel of 1.0 pn2 = pd.Panel(np.array([np.nan], dtype=np.float32, ndmin=3)) # panel of nan print(pd.concat([pn1, pn1]).values.dtype) print(pd.concat([pn2, pn2])...
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13,248
BUG: DataFrame and datetime scalar ops may results in incorrect dtype
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2016-05-21T06:05:08Z
2016-05-21T18:46:03Z
2016-05-21T18:45:57Z
MEMBER
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#### Code Sample, a copy-pastable example if possible `Timestamp` subtraction resuts in `Timedelta` ``` pd.Timestamp('2011-01-01') - pd.Timestamp('2010-01-01') # Timedelta('365 days 00:00:00') ``` But it doesn't when broadcasted to `DataFrame`. It's because `DataFrame` op calls `_try_corce_results` which coerces the...
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TST: check internal Categorical
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2016-05-21T13:43:29Z
2016-05-21T23:58:48Z
2016-05-21T23:58:25Z
MEMBER
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- [x] closes #13076 - [x] tests added / passed - [x] passes `git diff upstream/master | flake8 --diff`
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TST/ERR: Add Period ops tests / fix error message
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2016-05-21T13:48:54Z
2016-05-22T00:05:48Z
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MEMBER
null
- [x] related to #13242 closes #13251 - [x] tests added / passed - [x] passes `git diff upstream/master | flake8 --diff` This must be after #13079.
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156,104,072
MDU6SXNzdWUxNTYxMDQwNzI=
13,251
TST: assert that IncompatibleFrequency is raise (rather than ValueError)
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3
2016-05-21T14:16:25Z
2016-05-22T00:05:22Z
2016-05-22T00:05:22Z
CONTRIBUTOR
null
https://github.com/pydata/pandas/pull/13079#issuecomment-220780044 just need to make sure that we are raising IncompatibleFrequency as appropriate (and testing explicity for this rather than ValueError) when constructing Periods.
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MDExOlB1bGxSZXF1ZXN0NzA5NTM2NTg=
13,252
ENH: Allow to_sql to recognize single sql type #11886
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2016-05-21T16:27:20Z
2016-07-11T10:18:53Z
2016-07-11T10:18:22Z
CONTRIBUTOR
null
Follow-up in https://github.com/pydata/pandas/pull/13614 --- This solves #11886 It checks whether the passed dtype variable is a dictionary. If not, it creates a new dictionary with keys as the columns of the dataframe. It then passes this dictionary to the pandasSQL_builder.
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13,253
BUG: pd.read_csv() fails when usecols contains multibyte unicode values
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3
2016-05-21T22:18:50Z
2019-01-21T14:21:32Z
2019-01-21T14:21:32Z
CONTRIBUTOR
null
See PR: #13233 and pandas/io/tests/parser/usecols.py `test_usecols_with_multibyte_unicode_characters` #### Code Sample, a copy-pastable example if possible ``` python import pandas as pd from pandas.compat import StringIO s = '''あああ,いい,ううう,ええええ 0.056674973,8,True,a 2.613230982,2,False,b 3.568935038,7,False,a ''' data...
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MDU6SXNzdWUxNTYxNTQxNjg=
13,254
PERF/COMPAT: use kahan summation in .rolling(..).sum()
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1
2016-05-22T14:15:41Z
2020-09-15T22:20:49Z
2020-09-15T22:20:49Z
CONTRIBUTOR
null
from [mailing list](https://groups.google.com/forum/#!topic/pydata/Bl7QLr-Y5Z0) to avoid imprecision errors as the rolling computations are evaluated marginally (sliding the window and adding new / subtracting old). We tend to accumulate floating point errors. I looks like just an extra sum and subtract so I think th...
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156,181,419
MDU6SXNzdWUxNTYxODE0MTk=
13,255
df.groupby(col).resample('x') returning both unstacked or multiindex result
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2016-05-23T00:13:47Z
2016-07-08T13:32:53Z
2016-05-23T12:20:46Z
NONE
null
``` python import pandas as pd from itertools import cycle, islice N = 4 df = pd.DataFrame(index=pd.date_range('2000', periods=N)) df['col1'] = list(islice(cycle(['A', 'B']), N)) df['col2'] = list(islice(cycle(['a', 'b', 'c']), N)) print(df) ``` returns ``` col1 col2 2000-01-01 A a 2000-01-02 B ...
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156,219,514
MDU6SXNzdWUxNTYyMTk1MTQ=
13,256
64bit read_csv with dtype problem
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1
2016-05-23T07:52:07Z
2016-05-23T12:17:44Z
2016-05-23T12:17:12Z
NONE
null
#### Code Sample, a copy-pastable example if possible ``` test_str = u'1.7976931348623157e+308,1.7976931348623157e+308' ts_dbl = u'1.7976931348623157e+308' print np.float64(ts_dbl) dt={} tmpio = StringIO(test_str) market_head_list = [ "ClosePrice", "SettlementPrice"] dt['ClosePrice']=np.float64 dt['SettlementPrice']=n...
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156,247,715
MDU6SXNzdWUxNTYyNDc3MTU=
13,257
Pandas style.set_precision not working as expected
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2016-05-23T10:22:41Z
2019-10-22T01:53:38Z
2019-10-22T01:53:38Z
NONE
null
I expected the following code to give me a representation of my data that is rounded or truncated to 2 decimals. ``` import pandas as pd import numpy as np df = pd.DataFrame(data = np.random.randn(4,4), columns=['A','B','C','D']) df.style.set_precision(2) ``` However, it will always return 2 digits instead, so for e...
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156,272,932
MDU6SXNzdWUxNTYyNzI5MzI=
13,258
COMPAT: box int/floats in __iter__
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12
2016-05-23T12:50:11Z
2017-11-14T18:36:41Z
2017-09-12T12:54:54Z
CONTRIBUTOR
null
xref #13236 as `.map` was recently clarified to box ints/floats (and all other dtypes) to python/pandas types (rather than numpy scalars). `__iter__` should do the same (it already is done for datetimelikes), need to add for int/floats. Furthermore `Series.tolist()` also returns python types (#10904) This will make...
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156,300,360
MDU6SXNzdWUxNTYzMDAzNjA=
13,259
DataFrame.to_csv(quoting=csv.QUOTE_NONNUMERIC) now also quotes numeric values
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2016-05-23T15:03:09Z
2016-05-23T15:31:48Z
2016-05-23T15:31:20Z
NONE
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Somewhere between 0.16.1 and 0.18.1, QUOTE_NONNUMERIC started also quoting numeric values unexpectedly. ``` import csv df = pandas.DataFrame({ 'c_string': ['a', 'b,c'], 'c_int': [42, numpy.nan], 'c_float': [1.0, 3.2], 'c_bool': [True, False], }) print df.to_csv(quoting=csv.QUOTE_NON...
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MDU6SXNzdWUxNTYzMzc2ODg=
13,260
DOC: Strange behavior when combining astype and loc
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4
2016-05-23T18:37:22Z
2016-05-26T18:15:44Z
2016-05-26T18:15:44Z
NONE
null
I am trying to use `astype` together with `loc` to convert just a subset of columns to a specified dtype. However, I can't understand what is actually happening. Is this the expected behavior when combining `astype` and `loc`? #### Code Sample, a copy-pastable example if possible ``` import pandas as pd import numpy ...
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156,375,429
MDExOlB1bGxSZXF1ZXN0NzExMjY5NDM=
13,261
BUG: remove_unused_categories dtype coerces to int64
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1
2016-05-23T21:54:00Z
2016-05-24T13:23:41Z
2016-05-24T13:23:37Z
MEMBER
null
- [x] tests added / passed - [x] passes `git diff upstream/master | flake8 --diff` - [x] whatsnew entry ``` c = pd.Categorical(['a', 'b'], categories=['a', 'b', 'c']) c.codes # array([0, 1], dtype=int8) # NG, must be int8 dtype c = c.remove_unused_categories() c.codes # array([0, 1]) ``` It is because `np.unique` us...
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156,376,368
MDU6SXNzdWUxNTYzNzYzNjg=
13,262
ENH: Support mangle_dupe_cols=False in pd.read_csv()
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9
2016-05-23T21:59:20Z
2021-08-20T18:42:44Z
null
MEMBER
null
#12935 added full support for duplicate column names (in header or in `names`) by mangling them. While this has been considered _acceptable_ by users, ideally, we would like to not have to mangle them.
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MDExOlB1bGxSZXF1ZXN0NzExMjc2NjQ=
13,263
TST/CLN: remove np.assert_equal
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2016-05-23T21:59:27Z
2016-05-26T16:11:08Z
2016-05-26T16:10:52Z
MEMBER
null
- [x] tests added / passed - [x] passes `git diff upstream/master | flake8 --diff` Not to use `np.testing.assert_equal`, as `assert_numpy_array_equal` is more strict to check dtypes.
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13,264
TST: assert_dict_equal to check input type
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2016-05-23T22:16:04Z
2016-05-24T01:11:42Z
2016-05-24T01:11:06Z
MEMBER
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- [x] tests added / passed - [x] passes `git diff upstream/master | flake8 --diff` `assert_dict_equal` now checks input is `dict` instance. Fixed some tests which passes `Series` to it.
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156,415,229
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13,265
pd.read_html, AttributeError: AttributeError: 'NoneType' object has no attribute 'next_element'
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2
2016-05-24T04:00:04Z
2016-05-26T08:02:58Z
2016-05-24T13:10:22Z
NONE
null
When I try to use `pa.read_html()` to extract data from a html page, I got some error infos. How to solve this? Thanks. #### Code ``` import pandas as pd url = 'http://data.earthquake.cn/datashare/globeEarthquake_csn.html' dfs = pd.read_html(html) dfs ``` #### Some Infos - `pd.__version__` : `u'0.18.1'` - `pd.get_opti...
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156,462,731
MDU6SXNzdWUxNTY0NjI3MzE=
13,266
style format setting subset loses column titles
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13
2016-05-24T09:37:29Z
2021-05-05T19:21:07Z
2021-05-05T19:21:07Z
NONE
null
See example below. There is no "sex" in the styled table. ``` from IPython.display import display as d import pandas as pd df=pd.DataFrame.from_dict(dict(survived=[1,0,0,0,1,1,1,1], sex=["Male", "Female", "Male", "Female", "Male", "Female","Female", "Fem...
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156,500,689
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13,267
BUG: Bug in selection from a HDFStore with a fixed format and start and/or stop will now return the selected range
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0
2016-05-24T12:58:38Z
2016-05-24T15:28:17Z
2016-05-24T15:28:17Z
CONTRIBUTOR
null
closes #8287
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13,268
Import error: No module named 'pandas.compat.numpy'
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6
2016-05-24T13:25:38Z
2016-05-24T19:00:49Z
2016-05-24T13:32:24Z
NONE
null
Hi there! Just installed Anaconda for Windows (pandas 0.18.1, numpy 1.11.0) and cannot fix the following problem, when I am trying to import pandas: import pandas as pd Traceback (most recent call last): File "C:\Users\Username\AppData\Roaming\Python\Python35\site-packages\IPython\core\interactiveshell.py", line 28...
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156,538,001
MDU6SXNzdWUxNTY1MzgwMDE=
13,269
Dividing Time-series
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1
2016-05-24T15:28:55Z
2016-05-24T15:31:46Z
2016-05-24T15:31:34Z
NONE
null
Dividing time-series does not work as expected; #### Code Sample, a copy-pastable example if possible ``` python ts1 = pd.TimeSeries(range(10)) ts2 = pd.TimeSeries(range(10)) ts1[1:]/ts2[:-1] ``` the output of this operation is: ``` 0 NaN 1 1.0 2 1.0 3 1.0 4 1.0 5 1.0 6 1.0 7 1.0 8 1.0 9 ...
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13,270
DOC: fixed typos in GroupBy document
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1
2016-05-24T15:31:39Z
2016-05-24T15:35:02Z
2016-05-24T15:34:58Z
CONTRIBUTOR
null
- [ ] closes #xxxx - [ ] tests added / passed - [x] passes `git diff upstream/master | flake8 --diff` - [ ] whatsnew entry
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13,271
DOC: groupby by indexer to 'resample' data
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2016-05-24T15:48:30Z
2016-06-28T22:23:50Z
2016-06-28T22:18:02Z
NONE
null
Related to [this question](http://stackoverflow.com/questions/37396264/pandas-equivalent-of-resample-for-integer-index). I would like to propose either to expand `.resample` to work on indexes that are integers or to create another method that does the same thing (maybe more general `.upsample` and `.downsample` metho...
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ENH: support decimal argument in read_html #12907
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2016-05-24T18:21:48Z
2016-05-27T00:15:42Z
2016-05-27T00:15:29Z
CONTRIBUTOR
null
- [x] closes #12907 - [x] tests added / passed - [x] passes `git diff upstream/master | flake8 --diff` - [x] whatsnew entry
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improves usability of style calls on axis=1 by automatically creating…
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15
2016-05-24T20:14:54Z
2017-03-28T00:00:26Z
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NONE
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- [ ] closes #xxxx - [ ] tests added / passed - [ ] passes `git diff upstream/master | flake8 --diff` - [ ] whatsnew entry … the IndexSlice same as it does for axis=1 ``` df = pd.DataFrame(index = ['x', 'y', 'z']) df['a'] = [1,2,3] df['b'] = [4,5,6] df['c'] = [7,8,9] df df.style.background_gradient(subset='x', axis=...
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BUG, ENH: Improve infinity parsing for read_csv
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2016-05-24T23:24:22Z
2016-05-25T19:26:55Z
2016-05-25T17:32:03Z
MEMBER
null
1) Allow mixed-case infinity strings for the Python engine Bug was traced back via `lib.maybe_convert_numeric` to the `floatify` function in `pandas/src/parse_helper.h`. In addition to correcting the bug and adding tests for it, this PR also moves the `test_inf_parsing` test from `c_parser_only.py` to `common.py` in ...
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BUG: Properly validate and parse nrows in read_csv
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2016-05-25T02:20:41Z
2016-05-25T12:09:28Z
2016-05-25T12:09:25Z
MEMBER
null
1) Allows `float` values for `nrows` for the Python engine 2) Prevents abuse of the `nrows` argument for the CParser (e.g. you can passing `nrows=1.2`) Closes #10476.
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DOC: Added additional example for groupby by indexer.
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2016-05-25T04:01:05Z
2016-06-28T22:23:40Z
2016-06-28T22:18:03Z
CONTRIBUTOR
null
- [x] closes #13271 - [ ] tests added / passed - [ ] passes `git diff upstream/master | flake8 --diff` - [ ] whatsnew entry
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clean up PeriodIndex constructor
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2016-05-25T04:08:22Z
2017-03-04T21:16:03Z
2017-03-04T21:15:37Z
CONTRIBUTOR
null
- [x] closes #13232 - [x] tests added / passed - [x] passes `git diff upstream/master | flake8 --diff` - [x] whatsnew entry Material clean up of PeriodIndex constructor, which was doing a few weird things (https://github.com/pydata/pandas/issues/13232#issuecomment-220788816), and generally getting messy.
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DOC: Added an example of pitfalls when using astype
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7
2016-05-25T04:42:56Z
2016-05-26T18:15:56Z
2016-05-26T18:15:44Z
CONTRIBUTOR
null
- [x] closes #13260 - [ ] tests added / passed - [ ] passes `git diff upstream/master | flake8 --diff` - [ ] whatsnew entry
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156,694,989
MDU6SXNzdWUxNTY2OTQ5ODk=
13,279
BUG: pd.crosstab cannot handle series with the same name
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10
2016-05-25T08:47:58Z
2017-07-30T22:54:02Z
2017-07-30T22:54:02Z
NONE
null
the following works fine > > > c = pd.Series(rand(3)) > > > pd.crosstab(c,c) however, when giving the series a name, it fails: > > > c.name='test' > > > pd.crosstab(c,c) Traceback (most recent call last): File "C:\Python35\Lib\site-packages\pandas\indexes\multi.py", line 515, in _get_level_number 'level numbe...
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https://api.github.com/repos/pandas-dev/pandas/issues/13280
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156,703,266
MDU6SXNzdWUxNTY3MDMyNjY=
13,280
python pandas changes column value when setting with enlargement
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1
2016-05-25T09:27:40Z
2016-05-25T11:50:25Z
2016-05-25T11:50:10Z
NONE
null
I've boiled my problem down to this example. I am running Python 2.7 on Windows 7 and using pandas 0.17.1. ``` >>> import pandas as pd >>> print pd.__version__ 0.17.1 >>> x = pd.DataFrame({"a":["james"], "b":[True], "c":["john"]}) >>> x a b c 0 james True john >>> x.loc[1] = None >>> x a b ...
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13,281
Wrong behaviour of groupby with diff and merge
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5
2016-05-25T09:49:49Z
2016-05-25T17:15:54Z
2016-05-25T12:00:32Z
NONE
null
While writing a piece of code similar to the example below, I stumbled on a problematic interaction between groupby, diff and merge. My debugging efforts showed that this problem is likely related to the "fast_apply" optimisation Pandas uses when using apply(). As shown below, when using string values as grouping key...
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13,282
pandas.show_versions causing malloc_error_break
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1
2016-05-25T10:03:45Z
2016-05-25T17:35:10Z
2016-05-25T17:35:10Z
CONTRIBUTOR
null
If blosc is installed show_versions() will caused python to produce a malloc_error_break (double free) error on exiting. This can be seen in the travis runs under `source activate pandas && ci/print_versions.py` section but can also be easily replicated on Linux and Mac. The fix for this is to replace imp (which has be...
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156,722,601
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13,283
Change get_dummies() to return columns of dtype=bool instead of np.float64
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null
2
2016-05-25T11:04:47Z
2016-05-31T15:30:06Z
2016-05-31T15:30:06Z
NONE
null
- closes #8725
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13,284
Remove imp and just use importlib to avoid memory error when importin…
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5
2016-05-25T13:46:46Z
2016-05-25T17:35:50Z
2016-05-25T17:35:10Z
CONTRIBUTOR
null
- [ ] closes #13282 Remove imp from pandas.show_versions() to fix memory problem.
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13,285
COMPAT: extension dtypes (DatetimeTZ, Categorical) are now Singleton cached objects
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1
2016-05-25T17:11:32Z
2016-05-26T16:13:01Z
2016-05-26T16:13:01Z
CONTRIBUTOR
null
allows for proper is / == comparisons Had this odd semantic difference as these were really different objects (though they DID hash the same) This doesn't actually affect any user code. ``` In [1]: from pandas.core import common as com In [2]: t1 = com.DatetimeTZDtype('datetime64[ns, US/Eastern]') In [3]: t2 = com.D...
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13,286
COMPAT: can we reduce pathological cases in Index comparisons
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2
2016-05-25T17:55:40Z
2020-09-21T00:04:38Z
null
CONTRIBUTOR
null
from [SO](http://stackoverflow.com/questions/37444307/equality-of-pandas-index-objects-with-different-dtypes-and-elements/37444423#37444423) ``` In [1]: i1 = pd.DatetimeIndex(['1971-10-01'], dtype='datetime64[ns]', freq=None) In [2]: i2 = pd.Index([u'100171'], dtype='object') In [3]: i1 Out[3]: DatetimeIndex(['1971-...
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13,287
BUG: Pandas cannot create DataFrame from Numpy Array of TimeStamps
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3
2016-05-25T20:38:41Z
2019-06-27T20:39:25Z
2019-06-27T20:39:25Z
NONE
null
I have the following array of Timestamps: ``` python ts_array = np.array([[Timestamp('2016-05-02 15:50:00+0000', tz='UTC', offset='5T'), Timestamp('2016-05-02 15:50:00+0000', tz='UTC', offset='5T'), Timestamp('2016-05-02 15:50:00+0000', tz='UTC', offset='5T')], [Timestamp('2016-05-02 17:10:00+00...
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MDU6SXNzdWUxNTY4NjMwMTE=
13,288
BUG: DataFrame.describe() breaks with a column index of object type and numeric entries
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7
2016-05-25T22:17:16Z
2016-05-31T14:12:51Z
2016-05-31T14:12:51Z
CONTRIBUTOR
null
Preparing a commit for another issue in `.describe()`, I encountered this puzzling bug, surprisingly easy to trigger. #### Symptoms ``` python df = pd.DataFrame({'A': list("BCDE"), 0: [1,2,3,4]}) df.describe() # Long traceback listing formatting and internal functions... ValueError: Buffer dtype mismatch, expected 'Py...
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156,918,133
MDU6SXNzdWUxNTY5MTgxMzM=
13,289
defining min_itemsize creates "data_columns"
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5
2016-05-26T07:05:58Z
2016-05-27T00:50:06Z
2016-05-26T10:58:22Z
NONE
null
I am trying to write results from a dataframe to hdf using the append (or .to_hdf) function. A few of my columns are large string whose length will vary (around 1k characters). Because its length will vary, I have to set, min_itemsize, for each of the variable columns. I do not want these fields to be treated as data_c...
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156,925,247
MDU6SXNzdWUxNTY5MjUyNDc=
13,290
combine_first breaks for MultiIndex
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3
2016-05-26T07:54:13Z
2016-05-27T12:39:37Z
2016-05-27T12:39:27Z
NONE
null
I am not getting the expected output of the command `a.combine_first(b)`. All values are _NaN_. As you will see in my code, I want my index and columns to be the union of the indices and columns and the values to be of _a_ and only of _b_ if it does not exist in _a_ or is _NaN_ in _a_. Hence, I do not believe _DataFram...
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156,945,325
MDU6SXNzdWUxNTY5NDUzMjU=
13,291
format ignored in HDFStore.open
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1
2016-05-26T09:47:41Z
2018-12-09T16:10:58Z
2018-12-09T16:10:58Z
NONE
null
``` new_store = pd.HDFStore('data/test.h5', format='table') new_store['df'] = pd.DataFrame(np.random.rand(5,1)) new_store.put('df2', pd.DataFrame(np.random.rand(5,1)), format='table') print('df stored as table: %s' % new_store.get_storer('df').is_table) print('df2 stored as table: %s' % new_store.get_storer('df2').is_t...
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156,953,903
MDU6SXNzdWUxNTY5NTM5MDM=
13,292
Exception when adding a unicode margins_name in pivot_table
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3
2016-05-26T10:34:36Z
2017-09-12T10:31:32Z
2017-09-12T10:31:32Z
NONE
null
#### Code Sample, a copy-pastable example if possible This throws UnicodeDecodeError in python2 `pd.pivot_table(pd.DataFrame({'foo': [1,2,3]}), index=['foo'], aggfunc=len, margins=True, margins_name=u'Δοκιμή')` #### Expected Output Not throwing exception! #### output of `pd.show_versions()` <pre> INSTALLED VERSIONS...
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156,959,235
MDExOlB1bGxSZXF1ZXN0NzE1Mzc5MzA=
13,293
DOC: low_memory in read_csv
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3
2016-05-26T11:06:58Z
2016-05-26T23:56:27Z
2016-05-26T23:56:09Z
CONTRIBUTOR
null
- [x] closes #5888, xref #12686 - [x] passes `git diff upstream/master | flake8 --diff`
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156,972,420
MDU6SXNzdWUxNTY5NzI0MjA=
13,294
ERR: _shallow_copy should assert dtype
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7
2016-05-26T12:29:22Z
2020-04-10T03:40:25Z
2020-04-10T03:40:24Z
CONTRIBUTOR
null
xref #13288 ``` In [2]: i = Index([0,'A']) In [3]: i._shallow_copy([0]) Out[3]: Index([0], dtype='int64') ``` We should assert that we have a valid dtype in the constructed object (so should do this in `_simple_new` to avoid these guarantee violations)
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156,975,686
MDU6SXNzdWUxNTY5NzU2ODY=
13,295
TST: doc-build and html styling
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2016-05-26T12:47:55Z
2016-05-26T15:47:57Z
2016-05-26T15:47:57Z
CONTRIBUTOR
null
https://travis-ci.org/pydata/pandas/jobs/132906479#L1631 seems specifying the path wrong? @TomAugspurger @jorisvandenbossche
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157,042,603
MDU6SXNzdWUxNTcwNDI2MDM=
13,296
ERR: Series must have a singluar dtype otherwise should raise
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2016-05-26T17:59:00Z
2019-12-26T21:19:17Z
2019-12-26T21:19:17Z
CONTRIBUTOR
null
When constructing a `Series` object using a numpy structured data array, if you try and cast it to a `str` (or print it), it throws: ``` TypeError(ufunc 'isnan' not supported for the input types, and the inputs could not be safely coerced to any supported types according to the casting rule ''safe'') ``` You can prin...
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157,071,384
MDU6SXNzdWUxNTcwNzEzODQ=
13,297
ENH: EWM Sum?
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2
2016-05-26T20:25:57Z
2021-10-06T12:57:43Z
2021-10-06T12:57:43Z
CONTRIBUTOR
null
I _think_ this would be just: `.ewm(span).mean() * span` Now: ``` python In [4]: pd.Series(range(10)).ewm(span=2).sum() --------------------------------------------------------------------------- AttributeError Traceback (most recent call last) <ipython-input-4-8e0e72f35eb3> in <module>() ...
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https://api.github.com/repos/pandas-dev/pandas/issues/13298
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157,074,043
MDExOlB1bGxSZXF1ZXN0NzE2MjA3NTM=
13,298
BUG: Fix describe(): percentiles (#13104), col index (#13288)
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6
2016-05-26T20:39:43Z
2016-05-31T15:48:24Z
2016-05-31T14:12:51Z
CONTRIBUTOR
null
- [x] closes #13104, #13288 - [x] tests added / passed - [x] passes `git diff upstream/master | flake8 --diff` - [x] whatsnew entry BUG #13104: - Percentiles are now rounded to the least precision that keeps them unique. - Supplying duplicates in percentiles will raise ValueError. BUG #13288 - Fixed a column index ...
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157,091,734
MDU6SXNzdWUxNTcwOTE3MzQ=
13,299
API: New callable indexing makes storing functions in a Series difficult
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8
2016-05-26T22:18:51Z
2016-07-01T14:18:37Z
2016-07-01T14:18:37Z
CONTRIBUTOR
null
Example of something that previously worked (before 7bbd031104ee161b2fb79ba6f5732910661f94f8): ``` .python >>> s = pd.Series([lambda x: x] * 10) >>> s[s.index > 5] = lambda x: x + 1 ``` But now the second line tries to apply the function in the rhs to the elements of the Series, rather than assigning them (and throws...
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157,092,051
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13,300
TST: split up test_merge
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0
2016-05-26T22:21:08Z
2016-05-26T22:28:35Z
2016-05-26T22:28:35Z
CONTRIBUTOR
null
very small bug fix w.r.t. tz concatting
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13,301
TST: reorg datetime with tz tests a bit
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2016-05-26T22:24:50Z
2016-05-26T23:44:04Z
2016-05-26T23:44:04Z
CONTRIBUTOR
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13,302
Inconsistent Handling of na_values and converters in read_csv
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3
2016-05-26T23:58:42Z
2019-10-21T19:34:18Z
null
MEMBER
null
On `master` (commit <a href="https://github.com/pydata/pandas/commit/40b4bb4bb2a7018ed08025c5c93cd1080a0b5f7f">40b4bb4</a>): ``` python >>> data = """A 1 CAT 3""" >>> f = lambda x: x >>> read_csv(StringIO(data), na_values='CAT', converters={'A': f}, engine='c') A 0 1 1 CAT 2 3 >>> read_csv(StringIO(data), ...
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13,303
Timezone aware Timestamp.dayofyear does not report correct day
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1
2016-05-27T03:40:45Z
2017-03-20T17:51:28Z
2017-03-20T17:51:28Z
NONE
null
#### Code Sample, a copy-pastable example if possible ``` import pandas as PD time_str = '2015-10-01 23:59:00-04:00' pd_dto = PD.to_datetime(time_str, utc=True).tz_convert('US/Eastern') actual_yday = pd_dto.date().timetuple().tm_yday print 'pandas thinks', pd_dto, 'is the', pd_dto.dayofyear, 'yday' print '...
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