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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...
Column order manipulation using col-lg-push and col-lg-pull in Twitter Bootstrap 3
...h is consisted of length 5, and the other length 5, and finally one length 2 grid.
5 Answers
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How can I ensure that a division of integers is always rounded up?
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UPDATE: This question was the subject of my blog in January 2013. Thanks for the great question!
Getting integer arithmetic correct is hard. As has been demonstrated amply thus far, the moment you try to do a "clever" trick, odds are good that you've made a mistake. And when a fla...
LaTeX Optional Arguments
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Example from the guide:
\newcommand{\example}[2][YYY]{Mandatory arg: #2;
Optional arg: #1.}
This defines \example to be a command with two arguments,
referred to as #1 and #2 in the {<definition>}--nothing new so far.
But by addi...
How do you do a simple “chmod +x” from within python?
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201
Use os.stat() to get the current permissions, use | to or the bits together, and use os.chmod(...
How to make type=“number” to positive numbers only
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edited Aug 27 '19 at 7:44
Álvaro González
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python pandas: apply a function with arguments to a series
...w documentation). So now you can do:
my_series.apply(your_function, args=(2,3,4), extra_kw=1)
The positional arguments are added after the element of the series.
For older version of pandas:
The documentation explains this clearly. The apply method accepts a python function which should have ...
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 ...
How to change Android Studio's editor font?
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142
All you have to do is click the "Save As" button to create a new profile. You can't change the f...