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Change IPython/Jupyter notebook working directory
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edited Feb 11 '18 at 16:49
Brad Solomon
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How to show full object in Chrome console?
... Craver
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MVVM in WPF - How to alert ViewModel of changes in Model… or should I?
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11 Answers
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Active
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How do you tell if caps lock is on using JavaScript?
... instead to check casing.
– awe
Jun 11 '15 at 9:54
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How are POST and GET variables handled in Python?
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edited May 28 '14 at 11:22
Antti Haapala
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Formatting code in Notepad++
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answered Aug 11 '11 at 16:35
user890332user890332
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What is bootstrapping?
...omputers it's stored in ROM, but I recall the bootstrap process on the PDP-11, where you would poke bits via the front-panel switches to load a particular disk segment into memory, and then run it. Needless to say, the bootstrap loader is normally pretty small.
"Bootstrapping" is also used as a ter...
Still Reachable Leak detected by Valgrind
...ure.
– Dan Moulding
Oct 4 '10 at 19:11
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One case where "still reachable" memory can be considere...
What is the difference between public, protected, package-private and private in Java?
...his happen?
– Dawood ibn Kareem
Jul 11 '18 at 6:26
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show 8 more comments
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pandas GroupBy columns with NaN (missing) values
...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.fillna(-1).groupby('b').sum()
Out[12]:
a
b
-1 2
4 1
6 3
That said, this feels pretty awful hack... perhaps there should be an option...