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How to reorder data.table columns (without copying)
... c = runif(3))
x
# a b c
# [1,] 1 3 0.2880365
# [2,] 2 2 0.7785115
# [3,] 3 1 0.3297416
setcolorder(x, c("c", "b", "a"))
x
# c b a
# [1,] 0.2880365 3 1
# [2,] 0.7785115 2 2
# [3,] 0.3297416 1 3
From ?setcolorder:
In data.table parlance, all set* functions change their...
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How can I determine if a .NET assembly was built for x86 or x64?
...mblies.
– Kiquenet
Mar 25 '14 at 20:51
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Regular expression to get a string between two strings in Javascript
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answered Feb 20 '09 at 4:31
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