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Selecting with complex criteria from pandas.DataFrame
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406
Sure! Setup:
>>> import pandas as pd
>>> from random import randint
>>...
How to reuse an ostringstream?
...lear, then seek the appropriate sequence to the begin:
s.clear();
s.seekp(0); // for outputs: seek put ptr to start
s.seekg(0); // for inputs: seek get ptr to start
That will prevent some reallocations done by str by overwriting whatever is in the output buffer currently instead. Results are like...
Git Blame Commit Statistics
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Update
git ls-tree -r -z --name-only HEAD -- */*.c | xargs -0 -n1 git blame \
--line-porcelain HEAD |grep "^author "|sort|uniq -c|sort -nr
I updated some things on the way.
For convenience, you can also put this into its own command:
#!/bin/bash
# save as i.e.: git-authors and s...
Is there any way to prevent input type=“number” getting negative values?
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Use the min attribute like this:
<input type="number" min="0">
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Font Awesome not working, icons showing as squares
...;v=3.2.1')
– Braulio
Sep 16 '13 at 10:29
1
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Format decimal for percentage values?
...se the P format string. This will vary by culture:
String.Format("Value: {0:P2}.", 0.8526) // formats as 85.26 % (varies by culture)
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How does zip(*[iter(s)]*n) work in Python?
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answered Feb 9 '10 at 23:15
Ignacio Vazquez-AbramsIgnacio Vazquez-Abrams
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The most efficient way to implement an integer based power function pow(int, int)
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answered Sep 19 '08 at 12:54
Elias YarrkovElias Yarrkov
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Difference between var_dump,var_export & print_r
...the result.
// var_dump(array('', false, 42, array('42')));
array(4) {
[0]=> string(0) ""
[1]=> bool(false)
[2]=> int(42)
[3]=> array(1) {[0]=>string(2) "42")}
}
print_r is for debugging purposes, too, but does not include the member's type. It's a good idea to use if you k...
How to check if smtp is working from commandline (Linux) [closed]
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edited Aug 15 '19 at 16:20
rogerdpack
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