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How to use the 'sweep' function
When I look at the source of R Packages, i see the function sweep used quite often.
Sometimes it's used when a simpler function would have sufficed (e.g., apply ),
other times, it's impossible to know exactly what it's is doing without
spending a fair amount of time to step through the code block...
How to make PyCharm always show line numbers
I cannot seem to be able to find the setting to enable line numbers for all files, but I have to always right click and enable this on per file basis.
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PDO get the last ID inserted
...nt to get the last ID inserted. The field ID is the primary key and auto incrementing.
3 Answers
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from jquery $.ajax to angular $http
I have this piece of jQuery code that works fine cross origin:
4 Answers
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What do @, - and + do as prefixes to recipe lines in Make?
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Convert INT to VARCHAR SQL
I am using Sybase and I am doing a select which returns me a column called "iftype", but its type is int and I need to convert into varchar. When I try to do the select without the convert function I get this error:
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Using isKindOfClass with Swift
I'm trying to pick up a bit of Swift lang and I'm wondering how to convert the following Objective-C into Swift:
5 Answers
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__init__ for unittest.TestCase
I'd like to add a couple of things to what the unittest.TestCase class does upon being initialized but I can't figure out how to do it.
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How to flatten only some dimensions of a numpy array
Is there a quick way to "sub-flatten" or flatten only some of the first dimensions in a numpy array?
4 Answers
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