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Extracting specific columns in numpy array

This is an easy question but say I have an MxN matrix. All I want to do is extract specific columns and store them in another numpy array but I get invalid syntax errors. Here is the code: ...
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MySQL Workbench: How to keep the connection alive

... There is a bug in all version of MySQL Workbench beyond 6.0.x on Mac OS : stackoverflow.com/a/37890150/1014813 – lepix Jun 17 '16 at 20:48 ...
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How do I catch an Ajax query post error?

... @Yuck $.post can accept an error callback using deferred objects. Take a look at my answer below for an example. – Michael Venable Aug 24 '12 at 21:18 ...
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How to increment a NSNumber

... Update: FYI, I personally like BoltClock's and DarkDusts's one-line answers better. They're more concise, and don't require additional variables. In order to increment an NSNumber, you're going to have to get its value, increment that, and sto...
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Converting integer to binary in python

...ssence of pythonicity, but this is clearly much more versatile. I was initially excited to see the accepted solution with its elegant explanation, but alarmed that the object being called on to do the methods was written as a single string with all specifications built in, eliminating the involvemen...
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Lists: Count vs Count() [duplicate]

...ount property is part of the List itself (derived from ICollection). Internally though, LINQ checks if your IEnumerable implements ICollection and if it does it uses the Count property. So at the end of the day, there's no difference which one you use for a List. To prove my point further, here's t...
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Why does ('0' ? 'a' : 'b') behave different than ('0' == true ? 'a' : 'b') [duplicate]

... Actually, your statement that '0' is evaluated as a boolean is not correct, what actually happens is that true is evaluated as a number, which then forces '0' to be evaluated as a number. This comes as a direct result of the spec...
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Visual Studio: How to show Overloads in IntelliSense?

...itten, the only way I know of to view the overloads for a method is to actually edit the method by deleting the Parenthesis () and reopening them. ...
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How do I add a bullet symbol in TextView?

...st to clarify: use setText("\u2022 Bullet"); to add the bullet programmatically. 0x2022 = 8226 share | improve this answer | follow | ...
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Checking if jquery is loaded using Javascript

... the presence of jQuery. If jQuery isn't loaded then $() won't even run at all and your callback won't execute, unless you're using another library and that library happens to share the same $() syntax. Remove your $(document).ready() (use something like window.onload instead): window.onload = funct...