Code Sample, a copy-pastable example if possibleTo run this code you'll need a somewhat large matrix. You can get my ex...

xref #3087xref #12537 i have a dataframe like this df2011-01-07 14:51:00 42882011-01-07 14:52:00 42622011-01-07 ...

#### Code Sample, a copy-pastable example if possible# encoding: UTF-8import pandas as pdimport numpy as npdata1 = {&quo...

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dti = pd.date_range('2016-01-01', periods=3)ser = pd.Series(dti)tr = np.array([True, True, True])>>> ser & ...

This bug is related to pandas 2.0. On 1.5.3 (with numpy as dtype backend) everything works.Pandas version checks[X] I ha...

Code Sample, a copy-pastable example if possibleimport pandas as pdimport randomSIZE = 100000GROUPS = 10000 # The large...

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Splitting discussion off from #51280 PR #52153The checking and propagation of flags in __finalize__ means a small-but-ev...

When using the latest nightly numpy (1.25.0.dev0+..), we are getting some errors in the pyarrow test suite, that come fr...

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For Example, fillna requires method kwarg to be specified. the frame methodraises an exception if it is missing, but tra...

Support for non-nanosecond timedelta64, datetime64, and datetime64tz is coming along. The next big planned steps are to...

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http://stackoverflow.com/questions/17315737/split-a-large-pandas-dataframerelated #414Comment From: jrebackrelated #3066...

Add to advanced groupby sections docsThis seem a little strange, here the integer column N is upcast when using an apply...

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