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Efficiently checking if arbitrary object is NaN in Python / numpy / pandas?
...Datetimes too (if you use pd.NaT you won't need to specify the dtype)
In [24]: s = Series([Timestamp('20130101'),np.nan,Timestamp('20130102 9:30')],dtype='M8[ns]')
In [25]: s
Out[25]:
0 2013-01-01 00:00:00
1 NaT
2 2013-01-02 09:30:00
dtype: datetime64[ns]``
In [26]: pd.isnu...
If isset $_POST
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224
Most form inputs are always set, even if not filled up, so you must check for the emptiness too...
Overriding class constants vs properties
...his::TEST with PHP5.3+?
– Xenos
Jun 24 '14 at 13:05
Hi @Xenos - The goal of the example was to show that instance-leve...
Setting transparent images background in IrfanView
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edited Jul 24 '18 at 9:46
elomage
3,53122 gold badges2121 silver badges1919 bronze badges
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New lines inside paragraph in README.md
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524
Interpreting newlines as <br /> used to be a feature of Github-flavored markdown, but the...
What is a dependency property?
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– Jonathan Perry
Jul 17 '13 at 12:24
2
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Using sed, how do you print the first 'N' characters of a line?
...'.
– fedorqui 'SO stop harming'
Mar 24 '16 at 23:44
1
@fedorqui -r is apparently available on Lin...
How to get String Array from arrays.xml file
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answered Nov 27 '12 at 7:24
Muhammad Aamir AliMuhammad Aamir Ali
17.8k99 gold badges6161 silver badges5353 bronze badges
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Take diff of two vertical opened windows in Vim
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edited Oct 17 '17 at 9:24
answered Dec 8 '10 at 10:04
Ne...
List All Redis Databases
...fo' command
– Matt
Jul 29 '14 at 20:24
4
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