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Extract a dplyr tbl column as a vector
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iris2 %>% pull('Species')
iris2 %>% pull(Species)
iris2 %>% pull(5)
Resulting in...
[1] 21.0 21.0 22.8 21.4 18.7 18.1 14.3 24.4 22.8 19.2 17.8 16.4 17.3 15.2 10.4 10.4 14.7 32.4 30.4 33.9 21.5 15.5 15.2 13.3 19.2 27.3 26.0 30.4 15.8 19.7 15.0 21.4
And it also works fine with data fra...
Run an untrusted C program in a sandbox in Linux that prevents it from opening files, forking, etc.?
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edited Nov 5 '13 at 23:39
Catskul
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How to use performSelector:withObject:afterDelay: with primitive types in Cocoa?
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edited Aug 18 '11 at 9:25
Ovesh
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answered Nov 1...
MySQL LIKE IN()?
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Paul DixonPaul Dixon
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How to call one shell script from another shell script?
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– Nathan Lilienthal
Mar 1 '13 at 19:56
3
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What is a practical use for a closure in JavaScript?
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250
I've used closures to do things like:
a = (function () {
var privatefunction = function ()...
Calculate a MD5 hash from a string
I use the following C# code to calculate a MD5 hash from a string.
It works well and generates a 32-character hex string like this:
900150983cd24fb0d6963f7d28e17f72
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Passing data to Master Page in ASP.NET MVC
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viewData.Name = "My product";
viewData.Price = 9.95;
return View("Index", viewData);
}
}
Inheritance matches the master to view relationship well but when it comes to rendering partials / user controls I will compose their view data into the pages view data, e...
What is the maximum value for an int32?
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45 Answers
45
Active
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pythonic way to do something N times without an index variable?
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15
@Hamish: My test with 2.6 says 32% faster (23.2 us vs 17.6 us for N=1000). But that is a really time time anyways. I would default to the OP...