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How to add a new row to an empty numpy array

...hat you want is: arr = np.empty((0,3), int) Which is an empty array but it has the proper dimensionality. >>> arr array([], shape=(0, 3), dtype=int64) Then be sure to append along axis 0: arr = np.append(arr, np.array([[1,2,3]]), axis=0) arr = np.append(arr, np.array([[4,5,6]]), axis...
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How do you push just a single Git branch (and no other branches)?

I am working on a local git repository. There are two branches, master and feature_x . 4 Answers ...
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In javascript, is an empty string always false as a boolean?

...avior: ToBoolean The result is false if the argument is the empty String (its length is zero); otherwise the result is true Quote taken from http://www.ecma-international.org/publications/files/ECMA-ST/Ecma-262.pdf share ...
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How do you get centered content using Twitter Bootstrap?

...wer (pre 2.3.0) You need to define one of the two classes, row or span12 with a text-align: center. See http://jsfiddle.net/xKSUH/ or http://jsfiddle.net/xKSUH/1/ share | improve this answer ...
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snprintf and Visual Studio 2010

...ented snprintf in Visual Studio 2015. On earlier versions you can simulate it as below. Long version: Here is the expected behavior for snprintf: int snprintf( char* buffer, std::size_t buf_size, const char* format, ... ); Writes at most buf_size - 1 characters to a buffer. The resulting ...
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Can't find @Nullable inside javax.annotation.*

...tion comes from the package javax.annotation.Nullable ; but when I import it a compilation error is generated: cannot find symbol ...
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Why is '+' not understood by Python sets?

... as set difference. You can also use ^ for symmetric set difference (i.e., it will return a new set with only the objects that appear in one set but do not appear in both sets). share | improve this...
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Find if current time falls in a time range

...follow | edited Oct 1 '09 at 17:55 answered Oct 1 '09 at 15:08 ...
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Add Bootstrap Glyphicon to Input Box

... Without Bootstrap: We'll get to Bootstrap in a second, but here's the fundamental CSS concepts in play in order to do this yourself. As beard of prey points out, you can do this with CSS by absolutely positioning the icon in...
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PHP “pretty print” json_encode [duplicate]

...array into JSON output. Then I print the returned value to a file and save it. Problem is that the client wants to be able to open these JSON files for readability, so I'd like to add line breaks in and "pretty print" the JSON output. Any ideas on how to do this? My only other alternative that I can...