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Convert a python 'type' object to a string
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answered May 10 '18 at 16:36
Brian C.Brian C.
3,22511 gold badge1818 silver badges2929 bronze badges
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What does .SD stand for in data.table in R
...re available to j. For generic access they're wrapped up in .BY too. FAQ 2.10 has some history on it, but some clarity could be added to ?data.table. Great, docu help would be very welcome. Even better if you'd like to join project and change directly.
– Matt Dowle
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Redirecting from HTTP to HTTPS with PHP
...https
– David Meister
Jan 25 '14 at 10:12
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Extract value of attribute node via XPath
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lwellerlweller
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Loop backwards using indices in Python?
I am trying to loop from 100 to 0. How do I do this in Python?
15 Answers
15
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SQLAlchemy default DateTime
...PearsonArtPhotoPearsonArtPhoto
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14
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Create an array with same element repeated multiple times
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>>> Array.apply(null, Array(10)).map(function(){return 5})
[5, 5, 5, 5, 5, 5, 5, 5, 5, 5]
>>> //Or in ES6
>>> [...Array(10)].map((_, i) => 5)
[5, 5, 5, 5, 5, 5, 5, 5, 5, 5]
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DateTime.ToString() format that can be used in a filename or extension?
... have a look at more examples/options here: geekzilla.co.uk/View00FF7904-B510-468C-A2C8-F859AA20581F.htm
– Kristof Claes
Sep 19 '12 at 17:47
1
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Convert floats to ints in Pandas?
...ing values:
>>> df
A B C D
0 0.475103 0.355453 0.66 0.869336
1 0.260395 0.200287 NaN 0.617024
2 0.517692 0.735613 0.18 0.657106
>>> df[list("ABCD")] = df[list("ABCD")].fillna(0.0).astype(int)
>>> df
A B C D
0 0 0 0 0
1 ...
Calling shell functions with xargs
...the function should do it (untested):
export -f echo_var
seq -f "n%04g" 1 100 | xargs -n 1 -P 10 -I {} bash -c 'echo_var "$@"' _ {}
You can use the builtin printf instead of the external seq:
printf "n%04g\n" {1..100} | xargs -n 1 -P 10 -I {} bash -c 'echo_var "$@"' _ {}
Also, using return 0 a...