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Installing Numpy on 64bit Windows 7 with Python 2.7.3 [closed]
...ooks like the only 64 bit windows installer for Numpy is for Numpy version 1.3.0 which only works with Python 2.6
6 Answers...
Multi-line commands in GHCi
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187
Most of the time, you can rely on type inference to work out a signature for you. In your exam...
ALTER TABLE, set null in not null column, PostgreSQL 9.1
...P NOT NULL;
More details in the manual: http://www.postgresql.org/docs/9.1/static/sql-altertable.html
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How to insert newline in string literal?
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12 Answers
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Checking if a string can be converted to float in Python
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16 Answers
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Multiple aggregations of the same column using pandas GroupBy.agg()
...there a pandas built-in way to apply two different aggregating functions f1, f2 to the same column df["returns"] , without having to call agg() multiple times?
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Pandas dataframe get first row of each group
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>>> df.groupby('id').first()
value
id
1 first
2 first
3 first
4 second
5 first
6 first
7 fourth
If you need id as column:
>>> df.groupby('id').first().reset_index()
id value
0 1 first
1 2 first
2 3 first
3 4 seco...
How to remove specific elements in a numpy array
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10 Answers
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Explicitly select items from a list or tuple
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list( myBigList[i] for i in [87, 342, 217, 998, 500] )
I compared the answers with python ...