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How to determine whether a Pandas Column contains a particular value
...s working, except when I fed it a value that I knew was not in the column 43 in df['id'] it still returned True . When I subset to a data frame only containing entries matching the missing id df[df['id'] == 43] there are, obviously, no entries in it. How to I determine if a column in a Pandas d...
How to convert a factor to integer\numeric without loss of information?
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734
See the Warning section of ?factor:
In particular, as.numeric applied to
a factor is meani...
C-like structures in Python
...use Raymond Hettinger's named tuple recipe if you need to support Python 2.4.
It's nice for your basic example, but also covers a bunch of edge cases you might run into later as well. Your fragment above would be written as:
from collections import namedtuple
MyStruct = namedtuple("MyStruct", "fie...
clang error: unknown argument: '-mno-fused-madd' (python package installation failure)
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14 Answers
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JUnit test with dynamic number of tests
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Take a look at Parameterized Tests in JUnit 4.
Actually I did this a few days ago. I'll try to explain ...
First build your test class normally, as you where just testing with one input file.
Decorate your class with:
@RunWith(Parameterized.class)
Build one constr...
How to add an empty column to a dataframe?
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463
If I understand correctly, assignment should fill:
>>> import numpy as np
>>&g...
Using unset vs. setting a variable to empty
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How to iterate over the keys and values with ng-repeat in AngularJS?
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How about:
<table>
<tr ng-repeat="(key, value) in data">
<td> {{key}}...
Which version of CodeIgniter am I currently using?
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edited Jun 12 '14 at 0:45
answered Feb 4 '10 at 1:59
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Error: allowDefinition='MachineToApplication' beyond application level
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answered Sep 3 '12 at 8:45
John ReillyJohn Reilly
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