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Creating a new column based on if-elif-else condition
... passing in the axis=1 option:
In [1]: df['C'] = df.apply(f, axis=1)
In [2]: df
Out[2]:
A B C
a 2 2 0
b 3 1 1
c 1 3 -1
Of course, this is not vectorized so performance may not be as good when scaled to a large number of records. Still, I think it is much more readable. Especially c...
Replace tabs with spaces in vim
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IIRC, something like:
set tabstop=2 shiftwidth=2 expandtab
should do the trick. If you already have tabs, then follow it up with a nice global RE to replace them with double spaces.
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SyntaxError: Non-ASCII character '\xa3' in file when function returns '£'
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answered May 14 '12 at 19:16
Silas RaySilas Ray
23.5k55 gold badges4141 silver badges5959 bronze badges
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Connect to Amazon EC2 file directory using Filezilla and SFTP
I have created an AWS EC2 Instance and I want to be able to upload files to the server directory using FileZilla in the simplest and most straightforward fashion possible.
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Less aggressive compilation with CSS3 calc
...ession inside calc by default since v3.00.
Original answer (Less v1.x...2.x):
Do this:
body { width: calc(~"100% - 250px - 1.5em"); }
In Less 1.4.0 we will have a strictMaths option which requires all Less calculations to be within brackets, so the calc will work "out-of-the-box". This is an ...
INSERT with SELECT
...(name, location, gid)
SELECT name, location, 1
FROM courses
WHERE cid = 2
You can put a constant of the same type as gid in its place, not just 1, of course. And, I just made up the cid value.
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How to trim white spaces of array values in php
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12 Answers
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PostgreSQL error: Fatal: role “username” does not exist
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edited Jun 6 at 22:57
answered Aug 12 '12 at 4:13
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How to get relative path from absolute path
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23 Answers
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