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How do you extract a column from a multi-dimensional array?
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If you have an array like
a = [[1, 2], [2, 3], [3, 4]]
Then you extract the first column li...
How to get the second column from command output?
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If you could use something other than 'awk' , then try this instead
echo '1540 "A B"' | cut -d...
How can I switch themes in Visual Studio 2012
...2010 see:
http://visualstudiogallery.msdn.microsoft.com/366ad100-0003-4c9a-81a8-337d4e7ace05
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Getting user input [duplicate]
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81
a pretty good reason.
– Ulysse Mizrahi
Jul 27 '17 at 15:52
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Difference between session affinity and sticky session?
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Lou FrancoLou Franco
81.9k1414 gold badges126126 silver badges181181 bronze badges
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Visual Studio 2012 Express is suddenly “incompatible with this version of Windows”?
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I received the same message on Visual Studio 2012 Premium (on PC where Windows 7 re-installed i...
How to generate random SHA1 hash to use as ID in node.js?
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243,583,606,221,817,150,598,111,409x more entropy
I'd recommend using crypto.randomBytes. It's not sha1, but for id purposes, it's quicker, and just as "random".
var id = crypto.randomBytes(20).toString('hex');
//=> f26d60305dae929ef864...
How to calculate moving average using NumPy?
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NumPy's lack of a particular domain-specific function is perhaps due to the Core Team's discipl...
Gson: Directly convert String to JsonObject (no POJO)
...rent key. Here is a sample { "members" : { "key1" : "13756963814f2c594822982c0307fb81", "key2" : true, "key3" : 123456789 } }
– Hossain Khan
Nov 15 '13 at 20:01
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Selecting only numeric columns from a data frame
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The dplyr package's select_if() function is an elegant solution:
library("dplyr")
select_if(x,...