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How does python numpy.where() work?

...py array. It's an array of True/False values, not a single value. Furthermore, numpy arrays can be indexed by boolean arrays. E.g. x[x>5] yields [6 7 8], in this case. Honestly, it's fairly rare that you actually need numpy.where but it just returns the indicies where a boolean array is True. ...
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How does Python's super() work with multiple inheritance?

...t have the attribute, then it will look at Second. This situation becomes more complex when inheritance starts crossing paths (for example if First inherited from Second). Read the link above for more details, but, in a nutshell, Python will try to maintain the order in which each class appears on ...
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What's wrong with nullable columns in composite primary keys?

...d answer to this one. Judging by the votes, this answer is the clearest to more people. I still feel that the answer by Tony Andrews explains the intention behind this design better; do check it out as well! – Roman Starkov Feb 16 '15 at 15:24 ...
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SQlite Getting nearest locations (with latitude and longitude)

...llowing procedure for this purpose: To have a deterministic threshold and more accurate filter on data, It is better to calculate 4 locations that are in radius meter of the north, west, east and south of your central point in your java code and then check easily by less than and more than SQL oper...
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PHPUnit: assert two arrays are equal, but order of elements not important

...just the shortest way to explain the meaning of additional arguments. It's more self-descriptive then more clean variant: $this->assertEquals($array1, $array2, "\$canonicalize = true", 0.0, 10, true);. I could use 4 lines instead of 1, but I didn't do that. – pryazhnikov ...
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When should I really use noexcept?

...ovide satisfactory answers to some practical questions that led me to read more about noexcept in the first place. 8 Answ...
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Create a dictionary on a list with grouping

...e names too, of course :) However, might I suggest that a Lookup might be more appropriate? A Lookup is basically a dictionary from a key to an IEnumerable<T> - unless you really need the values as a list, it makes the code even shorter (and more efficient) with the ToLookup call: var groupe...
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How can I split a text into sentences?

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How do you add an in-app purchase to an iOS application?

...send a physical item to the user, or give them something that they can buy more than once, you would choose consumable. For the reference name, put whatever you want (but make sure you know what it is) For product id put tld.websitename.appname.referencename this will work the best, so for example, ...
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What's the difference between “Solutions Architect” and “Applications Architect”? [closed]

... (and pass) you. The fundamental problem is that "architecture" is nothing more or less than the sum of all the decisions that have been made about your application/solution/portfolio. So the title "architect" really means "decider". That says a lot, also by what it doesn't say. It doesn't say "buil...