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What is the difference between NaN and None?

...od = pd.Series([1, np.nan]) In [13]: s_bad.dtype Out[13]: dtype('O') In [14]: s_good.dtype Out[14]: dtype('float64') Jeff comments (below) on this: np.nan allows for vectorized operations; its a float value, while None, by definition, forces object type, which basically disables all efficien...
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Interface Builder: What are the UIView's Layout iOS 6/7 Deltas for?

...n iOS 7 – Lee Probert Sep 27 '13 at 14:19 add a comment  |  ...
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How to get a date in YYYY-MM-DD format from a TSQL datetime field?

...GetDate(),112) – NealWalters Jul 2 '14 at 14:26 1 This didn't work for me, suggestion above w/ a ...
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Case insensitive 'in'

... | edited Feb 11 at 14:36 answered Sep 2 '10 at 13:59 ...
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how to specify local modules as npm package dependencies

... Randy the DevRandy the Dev 20.8k66 gold badges4141 silver badges5353 bronze badges 2 ...
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Turn a simple socket into an SSL socket

...| edited Dec 13 '18 at 17:14 answered May 1 '13 at 23:36 Ca...
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Determining type of an object in ruby

...very reason. – tadman Aug 27 '13 at 14:36 14 ...
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Get a list of all the files in a directory (recursive)

...3/… – Tidhar Klein Orbach Sep 29 '14 at 12:36 ...
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How do I prevent angular-ui modal from closing?

... mauris 38.4k1414 gold badges9191 silver badges128128 bronze badges answered Nov 29 '13 at 13:29 artur grzesiakart...
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Android detect Done key press for OnScreen Keyboard

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