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Find row where values for column is maximal in a pandas DataFrame
...s np
>>> df = pandas.DataFrame(np.random.randn(5,3),columns=['A','B','C'])
>>> df
A B C
0 1.232853 -1.979459 -0.573626
1 0.140767 0.394940 1.068890
2 0.742023 1.343977 -0.579745
3 2.125299 -0.649328 -0.211692
4 -0.187253 1.908618 -1.862934
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Setting git parent pointer to a different parent
If I have a commit in the past that points to one parent, but I want to change the parent that it points to, how would I go about doing that?
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How to Right-align flex item?
Is there a more flexbox-ish way to right-align "Contact" than to use position: absolute ?
13 Answers
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The modulo operation on negative numbers in Python
I've found some strange behaviour in Python regarding negative numbers:
8 Answers
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PHP Sort a multidimensional array by element containing date
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Use usort() and a custom comparison function:
function date_compare($a, $b)
{
$t1 = strtotime($a['datetime']);
$t2 = strtotime($b['datetime']);
return $t1 - $t2;
}
usort($array, 'date_compare');
EDIT: Your data is organized in an array of arrays. To better distinguish those, le...
Use dynamic (variable) string as regex pattern in JavaScript
I want to add a (variable) tag to values with regex, the pattern works fine with PHP but I have troubles implementing it into JavaScript.
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jQuery animate backgroundColor
I am trying to animate a change in backgroundColor using jQuery on mouseover.
17 Answers
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Java HashMap performance optimization / alternative
I want to create a large HashMap but the put() performance is not good enough. Any ideas?
25 Answers
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What's the purpose of git-mv?
...ame newname
git add newname
git rm oldname
i.e. it updates the index for both old and new paths automatically.
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Algorithm to return all combinations of k elements from n
...to write a function that takes an array of letters as an argument and a number of those letters to select.
71 Answers
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