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How to delete a word and go into insert mode in Vim?
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How to get all child inputs of a div element (jQuery)
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How to specify a multi-line shell variable?
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Nik O'LaiNik O'Lai
2,82711 gold badge1111 silver badges1515 bronze badges
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Pandas dataframe get first row of each group
...the function default method keep='first'.
df.drop_duplicates('id')
Out[1027]:
id value
0 1 first
3 2 first
5 3 first
9 4 second
11 5 first
12 6 first
15 7 fourth
share
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What is the lifetime of a static variable in a C++ function?
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127
Motti is right about the order, but there are some other things to consider:
Compilers typical...
Good ways to sort a queryset? - Django
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Correct way to populate an Array with a Range in Ruby
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answered Feb 27 '18 at 13:19
Jesús Andrés Valencia MontoyaJesús Andrés Valencia Montoya
6111 silver badge44 bronze badges
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How to convert index of a pandas dataframe into a column?
... val
tick tag obs
2016-02-26 C 2 0.0139
2016-02-27 A 2 0.5577
2016-02-28 C 6 0.0303
and you want to convert the 1st (tick) and 3rd (obs) levels in the index into columns, you would do:
>>> df.reset_index(level=['tick', 'obs'])
tick obs ...
Is it safe to ignore the possibility of SHA collisions in practice?
... collision.
– Michael Borgwardt
Oct 27 '10 at 12:24
3
If you don't check for the possibility of a...
Why is early return slower than else?
...bda : with_else()).repeat()
[0.36009842032996175, 0.28962249392031936, 0.2927151355828528]
>>> T(lambda : without_else(True)).repeat()
[0.31709728471076915, 0.3172671387005721, 0.3285821242644147]
>>> T(lambda : with_else(True)).repeat()
[0.30939889008243426, 0.3035132258429485, 0....