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pandas GroupBy columns with NaN (missing) values
...n the Missing Data section of the docs:
NA groups in GroupBy are automatically excluded. This behavior is consistent with R, for example.
One workaround is to use a placeholder before doing the groupby (e.g. -1):
In [11]: df.fillna(-1)
Out[11]:
a b
0 1 4
1 2 -1
2 3 6
In [12]: df.fil...
Uint8Array to string in Javascript
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For anyone lazy like me, npm install text-encoding, var textEncoding = require('text-encoding'); var TextDecoder = textEncoding.TextDecoder;. No thanks.
– Evan Hu
Nov 29 '16 at 6:11
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Is there a better way of writing v = (v == 0 ? 1 : 0); [closed]
...+! v}).v.
– pimvdb
Aug 2 '11 at 11:32
17
@Brian: not with that magic + sign! ¯\_(ツ)_/¯
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Does Java SE 8 have Pairs or Tuples?
..., value[i]) , then filter based on the second value[i] element, and finally output just the indices.
9 Answers
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HTML character decoding in Objective-C / Cocoa Touch
First of all, I found this: Objective C HTML escape/unescape , but it doesn't work for me.
13 Answers
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Same-named attributes in attrs.xml for custom view
...tyleable> com_app_view_widget, unable to find attribute customAttr For all the view I try to declare for. Any ideas?
– Dapp
Jun 9 '14 at 14:54
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Is it possible to declare git repository as dependency in android gradle?
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this is spam i guess. but i really want to say that jitpack.io is really really really cool..............
– Eric
Jun 25 '16 at 4:58
5
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Fastest way to duplicate an array in JavaScript - slice vs. 'for' loop
...wer is vastly different. For example cloning an array of listeners before calling each of them. Those arrays are often small, usually 1 element.
– gman
Feb 13 '15 at 2:05
7
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'UserControl' constructor with parameters in C#
Call me crazy, but I'm the type of guy that likes constructors with parameters (if needed), as opposed to a constructor with no parameters followed by setting properties. My thought process: if the properties are required to actually construct the object, they should go in the constructor. I get two...
How can I add or update a query string parameter?
... @JarónBarends - Tweak value check to check against undefined and null to allow setting 0 values
Third Update
There was a bug where removing a querystring variable directly before a hashtag would lose the hashtag symbol which has been fixed
Fourth Update
Thanks @rooby for pointing out a regex o...