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BUG: fix col iteration in DataFrame.round, #11611 #11618

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BUG: fix col iteration in DataFrame.round, #11611 #11618

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skycaptain
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Fixes #11611. The iterator now uses DataFrame.iteritems instead of direct indexing.

max-sixty
max-sixty reviewed Nov 16, 2015
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pandas/core/frame.py
try:
yield np.round(df[col], decimals[col])
yield np.round(vals, decimals[col])
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Is the decimals lookup going to have the same problem if it's not unique here?

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The value of decimals is either of type dict or pandas.Series. Whereas the former can not have duplicate entries, a pandas.Series might have and direct indexing will return all values with the same index. So, this case is still not handled.

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I think let's raise if decimals is not unique (it should be a dict/Series).

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Had the same thought this morning.

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jreback commented Nov 16, 2015

need some tests

@max-sixty max-sixty mentioned this pull request Nov 17, 2015
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@jreback jreback added Bug Reshaping Concat, Merge/Join, Stack/Unstack, Explode Compat pandas objects compatability with Numpy or Python functions labels Nov 18, 2015
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jreback commented Nov 18, 2015

pls add the test example as well (you can just smoke tests it I think; e.g. assert it runs).

add a tests for passing a non-unique decimal.

put this in the bug-fix section for a whatsnew entry.

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Agreed.

@jreback jreback added this to the 0.17.1 milestone Nov 20, 2015
jreback pushed a commit that referenced this pull request Nov 20, 2015
@skycaptain @jreback
BUG: fix col iteration in DataFrame.round, #11611
80a2d53 
BUG: decimals must be unique indexed, #11618

BUG: Added test, added whatsnew entry, #11618

TST: move round testing to test_format.py
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jreback commented Nov 20, 2015

merged via 80a2d53

thanks!

@jreback jreback closed this Nov 20, 2015
@jreback jreback mentioned this pull request Nov 20, 2015
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@skycaptain skycaptain deleted the fix-11611 branch November 20, 2015 16:26
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