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Applying function with multiple arguments to create a new pandas column
...n:
>>> import numpy as np
>>> df = pd.DataFrame({"A": [10,20,30], "B": [20, 30, 10]})
>>> df['new_column'] = np.multiply(df['A'], df['B'])
>>> df
A B new_column
0 10 20 200
1 20 30 600
2 30 10 300
or vectorize arbitrary func...
Case insensitive regex in JavaScript
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answered Oct 15 '10 at 5:40
Michał NiklasMichał Niklas
46.7k1515 gold badges6262 silver badges9797 bronze badges
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Smart way to truncate long strings
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380
Essentially, you check the length of the given string. If it's longer than a given length n, cli...
Groovy / grails how to determine a data type?
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edited Apr 22 '10 at 8:24
answered Jan 13 '10 at 21:34
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Create dynamic URLs in Flask with url_for()
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answered Sep 20 '11 at 0:02
FogleBirdFogleBird
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With CSS, use “…” for overflowed block of multi-lines
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Milan Jaros
1,0171414 silver badges1818 bronze badges
answered Jun 3 '11 at 5:22
Jim ThomasJim Thomas
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How to return an NSMutableArray from an NSSet
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answered Sep 30 '10 at 0:41
dreamlaxdreamlax
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How do you generate dynamic (parameterized) unit tests in python?
... self.assertEqual(a,b)
Which will generate the tests:
test_sequence_0_foo (__main__.TestSequence) ... ok
test_sequence_1_bar (__main__.TestSequence) ... FAIL
test_sequence_2_lee (__main__.TestSequence) ... ok
======================================================================
FAIL: test_s...
How would you make two s overlap?
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90
I might approach it like so (CSS and HTML):
html,
body {
margin: 0px;
}
#logo {
p...
Multiline syntax for piping a heredoc; is this portable?
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105
Yes, the POSIX standard allows this. According to the 2008 version:
The here-document shal...