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Efficiently checking if arbitrary object is NaN in Python / numpy / pandas?

...= 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.isnull(s) Out[26]: 0 False 1 True 2 False dtype: bool ...
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How to set -source 1.7 in Android Studio and Gradle

... 8 Answers 8 Active ...
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how do I insert a column at a specific column index in pandas?

... 388 see docs: http://pandas.pydata.org/pandas-docs/stable/generated/pandas.DataFrame.insert.html u...
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How do I get current URL in Selenium Webdriver 2 Python?

... | edited Aug 18 at 8:17 Suyash 8411 silver badge1111 bronze badges answered Apr 13 '13 at 8:...
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How can I catch a ctrl-c event?

... | edited Feb 28 '14 at 11:28 auselen 25k44 gold badges6464 silver badges102102 bronze badges ...
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ASP.NET MVC passing an ID in an ActionLink to the controller

... answered Nov 25 '08 at 11:01 AnthonyWJonesAnthonyWJones 175k3030 gold badges227227 silver badges299299 bronze badges ...
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Static function variables in Swift

... 158 I don't think Swift supports static variable without having it attached to a class/struct. Try d...
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@RunWith(MockitoJUnitRunner.class) vs MockitoAnnotations.initMocks(this)

... | edited Jun 28 '17 at 10:28 answered May 30 '12 at 8:36 ...
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Scala constructor overload?

... 186 It's worth explicitly mentioning that Auxiliary Constructors in Scala must either call the prim...
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Javascript Functions and default parameters, not working in IE and Chrome

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