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edited Oct 22 '13 at 1:51
Daniel A.A. Pelsmaeker
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Should I use document.createDocumentFragment or document.createElement
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edited Aug 3 '14 at 13:39
answered Aug 3 '10 at 14:04
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Can the :not() pseudo-class have multiple arguments?
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edited May 18 '16 at 18:23
TylerH
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answered Ap...
Remove an entire column from a data.frame in R
...enome <- NULL
> head(Data)
chr region
1 chr1 CDS
2 chr1 exon
3 chr1 CDS
4 chr1 exon
5 chr1 CDS
6 chr1 exon
As pointed out in the comments, here are some other possibilities:
Data[2] <- NULL # Wojciech Sobala
Data[[2]] <- NULL # same as above
Data <- Data[,-2] ...
Why is sed not recognizing \t as a tab?
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answered Apr 9 '10 at 19:03
Mark ByersMark Byers
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How to make execution pause, sleep, wait for X seconds in R?
...leep(x)
proc.time() - p1 # The cpu usage should be negligible
}
testit(3.7)
Yielding
> testit(3.7)
user system elapsed
0.000 0.000 3.704
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Clang optimization levels
On gcc, the manual explains what -O3 , -Os , etc. translate to in terms of specific optimisation arguments ( -funswitch-loops , -fcompare-elim , etc.)
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Format a datetime into a string with milliseconds
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367
To get a date string with milliseconds (3 decimal places behind seconds), use this:
from date...
Update value of a nested dictionary of varying depth
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@FM's answer has the right general idea, i.e. a recursive solution, but somewhat peculiar coding...