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How to Correctly Use Lists in R?

...: Why do these two expressions not return the same result? x = list(1, 2, 3, 4); x2 = list(1:4) A list can contain any other class as each element. So you can have a list where the first element is a character vector, the second is a data frame, etc. In this case, you have created two different ...
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Uninitialized constant ActiveSupport::Dependencies::Mutex (NameError)

... 137 This is an incompatibility between Rails 2.3.8 and recent versions of RubyGems. Upgrade to the ...
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Jasmine.js comparing arrays

... 346 Just did the test and it works with toEqual please find my test: http://jsfiddle.net/7q9N7/3...
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Hello World in Python [duplicate]

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Difference between '..' (double-dot) and '…' (triple-dot) in range generation?

... | edited Dec 21 '16 at 0:33 answered Mar 13 '12 at 19:48 A...
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Move an array element from one array position to another

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Algorithm to return all combinations of k elements from n

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How do you remove duplicates from a list whilst preserving order?

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How to split a string in shell and get the last field

Suppose I have the string 1:2:3:4:5 and I want to get its last field ( 5 in this case). How do I do that using Bash? I tried cut , but I don't know how to specify the last field with -f . ...
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How do I loop through a list by twos? [duplicate]

... 392 You can use for in range with a step size of 2: Python 2 for i in xrange(0,10,2): print(i)...