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Difference between numpy.array shape (R, 1) and (R,)

... of the operations return in shape (R, 1) but some return (R,) . This will make matrix multiplication more tedious since explicit reshape is required. For example, given a matrix M , if we want to do numpy.dot(M[:,0], numpy.ones((1, R))) where R is the number of rows (of course, the same i...
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How can I use Guzzle to send a POST request in JSON?

...se = $client->post('url', [ GuzzleHttp\RequestOptions::JSON => ['foo' => 'bar'] // or 'json' => [...] ]); Docs share | improve this answer | follow ...
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Git diff says subproject is dirty

...only) or .gitmodules (will be versioned by git). For example: [submodule "foobar"] url = git@bitbucket.org:foo/bar.git ignore = untracked ignore = untracked to ignore just untracked files, ignore = dirty to also ignore modified files, and ignore = all to ignore also commits. There's appa...
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What exactly does a jar file contain?

...ce code. If you either open the jar file with a zip utility or run jar xf foo.jar you can extract the files from it, and have a look at them. Note that you don't need a jar file to run Java code - classloaders can load class data directly from the file system, or from URLs, as well as from jar file...
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What is the best way to test for an empty string with jquery-out-of-the-box?

...y(undefined); // true isEmpty(null); // true isEmpty(''); // true isEmpty('foo'); // false isEmpty(1); // false isEmpty(0); // false share | improve this answer | follow ...
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Hiding axis text in matplotlib plots

...t='off', labeltop='off', labelright='off', labelbottom='off') plt.savefig('foo.png', dpi=100, bbox_inches='tight', pad_inches=0.0) I used the tick_params call to basically shut down any extra information that might be rendered and I have a perfect graph in my output file. ...
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What's the actual use of 'fail' in JUnit test case?

... pseudo-code: test_addNilThrowsNullPointerException() { try { foo.add(NIL); // we expect a NullPointerException here fail("No NullPointerException"); // cause the test to fail if we reach this } catch (NullNullPointerException e) { ...
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Header files for x86 SIMD intrinsics

Which header files provide the intrinsics for the different x86 SIMD instruction set extensions (MMX, SSE, AVX, ...)? It seems impossible to find such a list online. Correct me if I'm wrong. ...
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How can I detect if a selector returns null?

...l. Another example: $ul = $elem.find('ul').presence() || $('<ul class="foo">').appendTo($elem) $ul.append('...') share | improve this answer | follow |...
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PHP shell_exec() vs exec()

I'm struggling to understand the difference between shell_exec() and exec() ... 4 Answers ...