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https://api.github.com/repos/pandas-dev/pandas/issues/101
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101
Enable .drop(...) to work with MultiIndex
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2011-08-15T17:36:34Z
2011-08-16T17:41:19Z
2011-08-16T17:41:19Z
MEMBER
null
So we could do like df.drop(['foo']) on this: ``` A B C foo foo one -0.659 0.7982 0.2346 bar two 2.266 -1.157 0.04916 bar three -1.786 2.029 0.4018 bar bar one 0.4682 2.42 -1.073 bar two -0.1343 -0.4565 -0.7504 bar baz two -1.387 -0.9...
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1,417,365
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102
pandas.stats.interface.ols broken in 0.4 from 0.3
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2011-08-16T18:51:21Z
2011-08-16T19:01:47Z
2011-08-16T19:01:47Z
NONE
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A previously working (python 2.6, pandas 0.3) program using pandas.stats.interface.ols now (python 2.7, pandas 0.4) throws an exception code: WP = pandas.WidePanel.fromDict( AllPairSignals) AllPairRets = WP.minor_xs('PairRet') AllPairSigs = WP.minor_xs('Sig1') AllPairModel = pandas.stats.interface.ols( y=AllPairRets, ...
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103
Enable groupby multiple levels (instead of just a single level)
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2011-08-17T19:04:13Z
2011-11-13T01:11:31Z
2011-11-13T01:11:31Z
MEMBER
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Maybe syntax will look something like: ``` frame.groupby(level=[0,2]) ```
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104
Implement ndarray.take analog on BlockManager
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2011-08-18T21:48:22Z
2011-09-29T04:22:46Z
2011-09-29T04:22:46Z
MEMBER
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To back DataFrame.take with mixed-type data
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105
README updated for better Github output
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2011-08-19T08:20:15Z
2013-12-04T00:40:17Z
2011-08-19T20:25:29Z
CONTRIBUTOR
null
Syntax errors in the README are fixed, so that the presentation in Github is as good as could be. Other changes include some minor changes to wording and added hyperlinks.
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106
ols should handle a Series (w/ MultiIndex) + LongPanel combo.
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2011-08-19T17:04:42Z
2011-08-23T02:20:04Z
2011-08-23T02:20:04Z
NONE
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The Series (w/ MultiIndex) is returned by **getitem** on a LongPanel.
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107
Partial fancy indexing using ints does not work on MultiIndex
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2011-08-22T00:39:43Z
2011-09-05T20:23:29Z
2011-09-05T20:23:29Z
MEMBER
null
``` In [44]: import pandas.rpy.common as com In [45]: cw = com.load_data('ChickWeight') Chick weight 1 0.0 10.5 41.4 2.0 10.5 47.25 4.0 10.11 56.47 6.0 10.11 66.79 8.0 10.11 79.68 10.0 10.11 93.05 12.0 10.11 108.5 14.0 9.778 123.4 16.0 9.471 144.6 ...
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108
Does LongPanel need to exist?
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2011-08-24T03:45:52Z
2011-12-29T05:21:19Z
2011-12-29T05:21:19Z
MEMBER
null
Deal with this question in pandas 0.5
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109
Enable sum/mean/std etc. on DataFrame to work on multi-level data
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110
Review DataFrame.{sum,mean,min,max,product,std,...} for behavior in the all-NA case
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111
Store level naming information in MultiIndex, for groupby, cross-tabulation, etc.
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112
.stack() does not yet work when MultiIndex already present
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2011-08-25T18:48:29Z
2012-02-09T21:20:29Z
2011-09-06T04:14:42Z
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This will not be dealt with in 0.4 unless I get a lot of energy
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113
Enhance droplevel integration when MultiIndex present
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2012-09-18T13:27:30Z
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114
Implement "margins" for pivot table / cross-tabulation support
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115
Enable .join methods for DataFrame / WidePanel to join multiple objects at once
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2011-08-28T00:16:21Z
2012-01-05T22:02:32Z
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Want to do stuff like: ``` df.join([df2, df2, df3], how='outer') ```
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baseball.csv
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2011-08-30T19:10:00Z
2011-09-15T04:25:17Z
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It seems like baseball.csv, used in pandas/doc/source/basic.rst, is not in the files. This causes docs to build incorrectly for commands 69-71 in that file.
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117
Added baseball.csv
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2011-08-30T20:09:28Z
2014-07-26T13:07:57Z
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This seems to work. Was that what you had in mind?
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118
Implement fancy indexing on WidePanel
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This needs to get done for 0.4 I've decided.
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119
Rename WidePanel to simply Panel
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2011-09-01T19:50:13Z
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Also going to do this for the 0.4 release. WidePanel will just be an alias for Panel. The name is too confusing.
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120
Sortedness problems with MultiIndex
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2011-09-02T20:11:06Z
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Take this example: arrays = [['bar', 'bar', 'baz', 'baz', 'qux', 'qux', 'foo', 'foo'], ['one', 'two', 'one', 'two', 'one', 'two', 'one', 'two']] tuples = zip(*arrays) tuples index = MultiIndex.from_tuples(tuples) s = Series(randn(8), index=index) This does not yield the expected result: ...
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121
Write / integrate Cython sortedness check in MultiIndex
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2011-09-02T20:15:36Z
2011-09-05T20:18:30Z
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Otherwise people (myself included) using MultiIndex might shoot themselves in the foot. Cost of checking should be relatively minimal.
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Implement faster IntIndex class
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Enable groupby to be used on ndarrays, record arrays
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2016-01-14T21:28:48Z
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124
Get view when selecting from hierarchical columns in DataFrame
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2011-09-05T20:00:39Z
2011-09-05T20:17:56Z
2011-09-05T20:17:56Z
MEMBER
null
I think it currently reindexes
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125
Enable shallow copy of BlockManager
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2011-09-05T22:07:23Z
2011-10-02T02:54:19Z
2011-10-02T02:54:19Z
MEMBER
null
So axis assignment doesn't blow up the world
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126
Add add_prefix/suffix methods to DataFrame
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2011-09-06T15:20:44Z
2011-09-08T03:57:15Z
2011-09-08T03:57:15Z
MEMBER
null
Basically one-liners
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127
timeRule -> time_rule renaming + deprecation warnings
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2011-09-06T15:48:58Z
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128
Objects with hierarchical index cannot be saved using HDFStore
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2011-09-06T17:23:12Z
2011-09-08T03:07:23Z
2011-09-08T03:07:23Z
MEMBER
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This really should get done for 0.4
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129
Added function to pull data from Yahoo! finance, FRED, and Ken French's website.
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4
2011-09-07T02:04:13Z
2011-09-08T02:24:19Z
2011-09-07T20:15:43Z
CONTRIBUTOR
null
The goal is to make it easy to pull in data off the web from various different sources using the same consistent framework. As an example: from pandas.io.data import DataReader gs = DataReader("GS", "yahoo")
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130
ENH: Add join to Panel
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2011-09-08T18:10:15Z
2014-07-03T14:26:20Z
2011-09-09T05:03:47Z
CONTRIBUTOR
null
This joins on indices only. It doesn't look like Panel._data.join_on a key is set up to handle multiple indices. You may want to implement it higher up in NDFrame, but this worked for my use case.
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131
GroupBy.apply can't yield Series with DataFrame input
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2011-09-08T22:32:28Z
2011-09-09T03:11:08Z
2011-09-09T03:07:28Z
MEMBER
null
``` In [23]: import pandas.util.testing as tm In [24]: df = tm.makeTimeDataFrame() In [25]: df.groupby(lambda x: x.month).count() Out[25]: A B C D 1 21 21 21 21 2 9 9 9 9 In [26]: df.groupby(lambda x: x.month).apply(len) Exception you want to get a Series like: 1 21 2 9 ```
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132
Enable GroupBy agg/transform/apply to take *args, **kwargs
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2011-09-08T22:34:50Z
2011-09-09T04:47:36Z
2011-09-09T04:47:36Z
MEMBER
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``` def apply(self, f, *args, **kwargs): pass ```
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133
Multi-key groupby fails with multiple functions
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2011-09-09T02:27:47Z
2011-09-09T03:06:57Z
2011-09-09T02:55:30Z
MEMBER
null
Chris Jordan-Squire said: If I had some DataFrame with a bunch of columns, including, say 'char1', 'char2', and 'float' then df.groupby('char1')['float'].agg([np.mean, np.std]) works but df.groupby(['char1', 'char2'])['float'].agg([np.mean, np.std]) throws TypeError: 'list' object is not callable.
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134
Partial multiple selection in advanced indexing
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2011-09-13T01:27:21Z
2012-03-13T22:15:54Z
2012-03-13T22:15:52Z
MEMBER
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``` foo bar one two three one two A 0.1241 0.0009403 -0.8312 -0.8608 0.1198 B 0.3026 1.344 -2.37 0.5601 -1.064 C 0.5238 -0.7135 -1.861 -1.266 0.3329 ``` Want to be able to do ``` df.ix[:, ['bar', 'foo']] ```
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135
Setting single column in mixed type frame throws exception
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2011-09-13T01:30:09Z
2011-09-20T16:30:48Z
2011-09-20T16:30:48Z
MEMBER
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This raises an exception ``` df = DataFrame(randn(5, 3), index=labels, columns=['foo', 'bar', 'baz']) df['str'] = 'value' df.ix[::2, 'str'] = nan ```
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minor: just removed pasting of import of datetime into version.py
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2011-09-13T15:37:44Z
2014-07-02T21:11:05Z
2011-09-17T01:35:07Z
CONTRIBUTOR
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so to avoid change of file while doing setup.py operations, removing pasting of the import of datetime into version.py
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137
Enh tests compat pytables 2.1
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2011-09-13T21:08:05Z
2014-06-16T08:10:47Z
2011-09-17T01:31:25Z
CONTRIBUTOR
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unfortunately on Debian systems we still have pytables 2.1; but it still would be nice to have pandas' unittests to pass with skips but without an error or failure -- major incompatibility is absense of blosc compressor. This changes make those tests conditional on the version of pytables being at least 2.2 to test b...
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138
DataFrame repr fails if a column contains tuples
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2011-09-22T13:45:44Z
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139
Removed warnings when compiling using MSVC/Mingw under 64bit Windows
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2011-09-14T18:29:55Z
2011-09-17T01:50:54Z
2011-09-14T18:38:51Z
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BUG: changed index types to Py_ssize_t to use 64-bit indexes on 64 bit machines. Compiles on Windows-7 64bit with just a few warnings remaining (of initially hundreds) that I cannot fix since they seem to be upstream in cython. C:\Program Files (x86)\Microsoft Visual Studio 9.0\VC\BIN\amd64\cl.exe /c /nologo /Ox /MD ...
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140
ENH: Add panel_index convenience function
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2011-09-14T21:43:18Z
2014-08-02T09:06:16Z
2011-09-17T01:41:13Z
CONTRIBUTOR
null
The convenience function I've been using. Don't know if it belongs in pandas or where.
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141
ENH: Allow to sort on index level by name
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2011-09-14T23:17:01Z
2014-06-16T22:03:18Z
2011-09-17T01:47:28Z
CONTRIBUTOR
null
Trying to implement the easy items on my wishlist. Allows sorting by the name of the level in the Index as well as its index.
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ENH: Allow unstacking by level name
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2011-09-14T23:59:36Z
2014-06-14T02:28:14Z
2011-09-17T01:52:24Z
CONTRIBUTOR
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More low-hanging fruit. Anywhere the indices have names, might as well be able to use them.
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143
DataFrame.to_csv bug: headers mis-aligned
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2011-09-15T00:39:50Z
2011-09-22T14:21:58Z
2011-09-22T14:21:58Z
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pandas version: 0.4.0 from pypi The problem is that there is no header for the index column: In [1]: import pandas In [2]: d = pandas.DataFrame(randn(3, 2), range(3), ['a', 'b']) In [3]: d.to_csv('tmp.csv') In [4]: cat tmp.csv a,b 0,-0.244543341458,-1.50542482731 1,-1.02524916375,0.279887233706 2,0.0657877607121,-...
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DataFrame.corrwith fails with object columns
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Add dtypes property to DataFrame
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2011-09-29T01:16:20Z
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@property def dtypes(self): return np.sort( Series( dict( (x,self[x].dtype ) for x in self.columns ) ) )
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Minor change to csv reading
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2011-09-16T09:32:28Z
2014-06-16T01:22:51Z
2011-09-17T01:44:08Z
NONE
null
Hi Wes Firstly, congrats on such an amazing project! I love prototyping in python / numpy / ipython, but I always envy some of R's features. I tried pandas out about 9 months ago and although it was interesting, it seemed very rough around the edges. Now, however, it is looking really polished and I've been using it f...
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147
Sortlevel / pivot may silently misalign data with duplicate labels
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2011-09-17T01:19:26Z
2011-09-20T15:38:52Z
2011-09-20T15:38:48Z
MEMBER
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148
Failing Test on Ambiguous Date/Time on Ubuntu 10.04
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2011-09-17T06:20:10Z
2011-09-18T02:47:20Z
2011-09-18T02:47:20Z
NONE
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Failing Test on Ambiguous Date/Time on Ubuntu 10.04 No milestone No one is assigned Edit I've installed the dependencies as well as Cython and am getting a failing test on Ubuntu 10.04: FAIL: test_with_tzinfo_ambiguous_times (pandas.tests.test_daterange.TestDateRange) Traceback (most recent call last): File "/home/ry...
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149
Failing test on OLS on Ubuntu 10.04
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2011-09-17T06:20:52Z
2011-09-22T13:16:22Z
2011-09-22T13:16:22Z
NONE
null
I've installed the dependencies as well as Cython and am getting a failing test on Ubuntu 10.04: FAIL: testOLSWithDatasets (pandas.stats.tests.test_ols.TestOLS) Traceback (most recent call last): File "/home/ryan/Code/pandas/pandas/stats/tests/test_ols.py", line 56, in testOLSWithDatasets self.checkDataSet(datasets.c...
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Document swaplevel method
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2011-09-17T14:52:11Z
2011-09-25T21:39:33Z
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ENH: improve DataFrame read_csv / to_csv for Index/MultiIndex
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2011-09-17T17:56:07Z
2014-06-19T05:29:22Z
2011-09-22T14:03:03Z
CONTRIBUTOR
null
2 issues for DataFrame.to_csv 1 ) If header and index are True, you should write something for an index header, even if index_level is None. 2) If given a MultiIndex, don't want to just call str() on each element. Also fixed read_csv to take an iterable for index_col so that I could write tests. I haven't looked at ...
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152
Write fast OHLC aggregator
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2011-09-17T21:36:13Z
2012-04-06T03:31:01Z
2012-04-06T03:31:01Z
MEMBER
null
To work with GroupBy
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153
Implement custom "grouper" class
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2011-09-17T21:37:07Z
2012-05-01T18:56:10Z
2012-05-01T18:56:10Z
MEMBER
null
Special grouping objects which will result in more optimal performance on, for example, ordered time series data
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Series.shift fails on integer arrays due to NaN handling
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Weights option should be removed in OLS classes
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Integrate openpyxl into pandas.io.parsers
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Implement optimized DataFrame.join and reindex methods for ordered time series data
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Implement no copy item deletion in BlockManager
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2011-09-19T18:11:17Z
2011-12-12T20:00:13Z
2011-12-12T20:00:13Z
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Should just split a block into two views on the original data. This won't free memory but will be much faster.
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159
Add level keyword to .drop method
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2011-09-19T23:09:12Z
2012-03-13T20:41:30Z
2012-03-13T20:41:30Z
MEMBER
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To drop values from a level in a MultiIndex
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160
as_index in GroupBy does not work properly with a single key
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161
Document combine_first and any related methods
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Speed optimization: Block do not use their own Index objects
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2011-09-21T16:03:43Z
2014-04-25T14:26:32Z
2014-04-25T14:26:32Z
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A lot of time is spent in Index.**new** in some computations. I do not think there's an essential need to create Index objects when you could just have an array of integers referring back to the single Index having all the column names for the DataFrame. This would also facilitate renaming as renaming would only need t...
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163
Move Block internals code to Cython
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2011-09-21T16:05:33Z
2016-01-14T21:29:18Z
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I'm not sure if there's any way to not break legacy pickles during this process. The Blocks and BlockManager should be extension classes
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164
Add name/names field to Index and integrate
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2011-09-22T14:05:38Z
2011-11-07T05:28:11Z
2011-11-07T05:28:11Z
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Want stack/unstack to not discard names. Should be careful to raise an exception when there are duplicate names and the level name is used
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165
Document CSV/table -> DataFrame with MultiIndex
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166
Implement multiple-function aggregation with DataFrame in groupby
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2011-09-22T15:05:29Z
2012-01-12T02:32:02Z
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Result should have a hierarchical index in the columns. Behavior with as_index=False is somewhat ambiguous, though
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Possible interactions with taldcroft/asciitable?
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DateRange.copy bug
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2011-09-22T19:41:56Z
2011-09-25T05:16:37Z
2011-09-25T05:16:37Z
MEMBER
null
tzinfo attribute does not make it into the copy
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169
issue moving from 0.3.0 to v0.4.0
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2011-09-23T18:56:20Z
2011-09-25T04:55:27Z
2011-09-25T04:55:27Z
CONTRIBUTOR
null
0.4.0 seems to use np.add.reduceat() where 0.3.0 doesn't which is causing issues with some code I run during the evaluation of the beta in a PanelOLS. In particular, during the evaluation of self._y_trans.count() in _time_obs_count() there is a seg fault. I'm not familiar with the internals of numpy or pandas but it ...
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170
Implement frequency table function a la table in R
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2011-09-25T14:53:47Z
2012-01-16T17:48:15Z
2012-01-16T17:48:15Z
MEMBER
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171
Add Panel.dropna method of some kind
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2011-09-25T15:04:15Z
2012-07-12T20:59:01Z
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172
SparseSeries.__add__ perf bad with large # of blocks
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2011-09-25T15:28:08Z
2011-10-15T20:43:35Z
2011-10-15T20:43:35Z
MEMBER
null
``` python In [44]: foo = Series(np.random.randn(100000)) In [45]: bar = Series(np.random.randn(100000)) In [46]: foo[::3] = np.nan In [47]: bar[::4] = np.nan In [48]: sfoo = foo.to_sparse(kind='integer') In [49]: sbar = bar.to_sparse(kind='integer') In [52]: timeit sfoo + sbar 100 loops, best of 3: 15.8 ms per l...
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173
Implement sparse array / accumulator object
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2011-09-25T15:38:55Z
2011-12-12T04:40:04Z
2011-12-12T04:40:04Z
MEMBER
null
To pair well with other indexed sparse data structures
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174
Add axis= keyword to DataFrame.fillna
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2011-09-25T15:43:16Z
2012-03-14T20:14:47Z
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MEMBER
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175
prettytable library integration for nice console output
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1
2011-09-25T15:53:28Z
2011-11-06T01:44:27Z
2011-11-06T01:44:27Z
MEMBER
null
This would be really nice for contingency/frequency tables and for showing the level names in MultiIndex objects
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176
Join general speed optimizations
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2011-09-25T16:30:03Z
2011-09-29T01:06:12Z
2011-09-29T01:06:12Z
MEMBER
null
Need: - Take functions for each of the major dtypes: bool, object, float, integer - Routines for joining together consolidated blocks using the above routines - Get rid of putmask business
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177
Write Cython code generation for take routines once stabilized
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2011-09-26T20:20:13Z
2012-02-09T21:20:17Z
2011-09-27T04:03:41Z
MEMBER
null
Similar to bottleneck
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178
DateRange.union speed shortcuts don't work in some cases
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2011-09-27T04:30:31Z
2011-10-01T20:30:39Z
2011-10-01T20:30:39Z
MEMBER
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Not good: ``` python In [15]: rng = DateRange('1/1/2000', periods=100000, offset=datetools.Minute()) In [16]: timeit rng.union(rng[:-1]) 10 loops, best of 3: 93.9 ms per loop In [17]: timeit rng.intersection(rng[:-1]) 100 loops, best of 3: 12.2 ms per loop ```
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1,749,992
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179
Pre-epoch dates giving OverflowError in mktime with HDFStore
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2011-09-27T08:19:17Z
2012-04-22T02:11:51Z
2012-04-22T02:11:51Z
NONE
null
I am having trouble with pre-epoch dates working with HDFStore, getting an OverflowError in mktime, as shown below. Sample code is: ``` import numpy as np from pandas import * def panda_test(): # generate some data data = np.random.rand(50,5) # generate some dates da...
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180
import pandas
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22
2011-09-27T10:22:30Z
2013-12-04T00:40:10Z
2011-10-04T15:51:00Z
NONE
null
I am getting the following error in Ipython when importing pandas, any ideas? /Library/Python/2.6/site-packages/pandas-0.4.1-py2.6-macosx-10.6-universal.egg/pandas/core/common.py:11: RuntimeWarning: numpy.dtype size changed, may indicate binary incompatibility import pandas._tseries as _tseries /Library/Python/2.6/s...
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181
as_index in GroupBy still not fully implemented
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1
2011-09-28T02:32:20Z
2011-10-01T19:56:43Z
2011-10-01T19:56:43Z
MEMBER
null
``` python df = DataFrame({'A' : ['foo', 'bar', 'foo', 'bar', 'foo', 'bar', 'foo', 'foo'], 'B' : ['one', 'one', 'two', 'three', 'two', 'two', 'one', 'three'], 'C' : randn(8), 'D' : randn(8)}) df grouped = df.groupby('A') groupe...
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1,765,150
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182
DataFrame to_csv() ignores nanRep argument for float32 input
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2
2011-09-28T15:03:45Z
2011-10-02T11:56:59Z
2011-10-01T19:24:10Z
NONE
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import numpy as np import pandas d = np.random.randn(8, 4) df = pandas.DataFrame(d) df[1][:] = np.nan df.to_csv('pandas-success.csv', nanRep='999') d = np.asarray(np.random.randn(8, 4), dtype=np.float32) df = pandas.DataFrame(d) df[1][:] = np.nan df.to_csv('pandas-fail.csv', nanRep='999') After running this with pan...
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1,766,997
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183
nosetests failures and errors
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2011-09-28T18:24:37Z
2011-09-28T19:50:47Z
2011-09-28T19:50:47Z
NONE
null
I am trying to build the latest version of pandas on Mac OS X 10.6.8. I am using Enthought's python distribution: Python 2.7.2 |EPD 7.1-2 (64-bit). I downloaded the source from github, used python setup.py install, and it appeared to build without error. When I run nosetests pandas, I get some errors and failures (out...
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184
Consistently set group name on groupby groups
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2011-09-29T01:29:57Z
2012-05-15T00:15:43Z
2012-05-15T00:15:43Z
MEMBER
null
Currently not done consistently, a couple of functions do it but it should be done everywhere preferably...
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1,771,030
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185
Advanced indexing .ix does not handle step with integer labels
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0
2011-09-29T01:31:48Z
2011-09-30T01:05:12Z
2011-09-30T01:05:08Z
MEMBER
null
Should raise exception: ``` python In [14]: import pandas.util.testing as tm In [15]: df = tm.makeTimeDataFrame() In [16]: df.index = np.arange(len(df)) In [17]: df.ix[:20:2, :] Out[17]: A B C D 0 0.7272 2.299 0.6004 -1.295 1 0.1992 -0.6554 -0.6646 2.679 2 -2.888 -0...
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1,771,648
MDU6SXNzdWUxNzcxNjQ4
186
Update README file to note that Cython is required for build
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2011-09-29T03:35:46Z
2011-09-29T04:25:47Z
2011-09-29T04:25:47Z
NONE
null
It is missing from the dependencies list.
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187
notnull very slow compared with 0.3.0
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2011-09-30T01:11:13Z
2011-10-01T01:41:57Z
2011-10-01T01:41:57Z
MEMBER
null
from Rory Grandin on the pystatsmodels mailing list ``` I'm not sure if anyone else has come across this, but I use notnull extensively for checking if individual values are valid, and when switching from pandas 0.3 to 0.4, noticed an almost fivefold increase in the runtime for notnull. I think this is because notnul...
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188
Add method to MultiIndex for retrieving level values
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2011-10-01T00:36:41Z
2011-10-02T02:46:03Z
2011-10-02T02:46:03Z
MEMBER
null
Per mailing list question from @laserson, this should look like: ``` python level_values = np.asarray(index.levels[i]).take(index.labels[i]) ``` documentation and tests needed
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189
Add fast pairwise rolling correlation function
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2011-10-01T01:02:14Z
2011-12-12T05:20:53Z
2011-12-12T05:20:53Z
MEMBER
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@idrisr ``` python def rolling_corr_pairwise(df, window): all_results = {} for col, left in df.iteritems(): all_results[col] = col_results = {} for col, right in df.iteritems(): col_results[col] = rolling_corr(left, right, window) return Panel(all_results) ```
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190
pytz integration with fast local tz conversions with datetime64 dtype
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SQLalchemy interface in pandas.io
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setupegg.py develop won't invoke Cython
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193
Add out argument to common.take_1d
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2011-10-02T16:06:48Z
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Like take_2d
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194
adding covariance to dataframe
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2011-10-04T07:06:35Z
2011-11-14T03:10:39Z
2011-11-14T03:10:39Z
NONE
null
here is a sample implementation for dataframe. ``` python def cov(self): """ Compute pairwise covariance of columns Returns ------- y : DataFrame """ cols = self.columns std = np.diag(self.std()) corr = self.corr() result = np.dot(np.dot(std, corr), std) return self._const...
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195
DateRange not only with datetime() but also with date().
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2011-10-04T13:26:13Z
2011-10-04T13:53:12Z
2011-10-04T13:53:12Z
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For daily data, datetime.date may be a more natural choice than datetime.datetime. How about allowing DateRange to work with date as well as datetime? For instance, DateRange(date(1990,1,1), date(1990,12,31))
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196
summary() method to all pandas objects.
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2011-10-04T13:42:05Z
2011-10-09T17:41:35Z
2011-10-09T17:41:35Z
NONE
null
I always envy summary() function in R. It is really useful in displaying basic statistics of each object. How about supporting the method for all pandas objects?
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197
Raise SkipTest if no xlrd
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198
MultiIndex Bugs (may be related to failure of get_tuple_index)
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2011-10-05T22:34:32Z
2011-10-06T18:30:13Z
2011-10-05T23:16:20Z
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Some examples given in documentation for MultiIndexing do not work. Namely, you cannot add DataFrames or Series of different sizes, and you cannot use reindexing. This seems to be related to the fact that Index(list(index)) fails if index is an instance of MultiIndex. > > > from pandas import * > > > from numpy.ra...
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199
MultiIndex with single level does not work
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2011-10-06T18:25:09Z
2011-10-09T17:36:26Z
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`.ix` based indexing fails, for example
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Python 3 compatibility
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2011-10-06T18:53:36Z
2014-06-13T05:01:26Z
2011-10-09T03:13:19Z
CONTRIBUTOR
null
No doubt there are ways this could be improved, but this gets it installing, importing, and _almost_ passing the test suite. There's one test failure left, and I think that's something odd with numpy, specifically the `ndarray.searchsorted()` method. It returns seemingly random results when it's called in `panel.get_a...
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