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T.J. CrowderT.J. Crowder
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Where is shared_ptr?
... James McNellisJames McNellis
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Remove columns from DataTable in C#
...a DataTable from that I am being passed back from a function call. It has 15-20 columns, however I only want 10 columns of the data.
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What is the session's “secret” option?
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answered Mar 17 '11 at 18:05
HacknightlyHacknightly
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How do I interactively unstage a particular hunk in git?
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edited Jul 31 '14 at 12:50
answered Mar 4 '11 at 0:34
Aas...
How to drop columns by name in a data frame
...exing or the subset function. For example :
R> df <- data.frame(x=1:5, y=2:6, z=3:7, u=4:8)
R> df
x y z u
1 1 2 3 4
2 2 3 4 5
3 3 4 5 6
4 4 5 6 7
5 5 6 7 8
Then you can use the which function and the - operator in column indexation :
R> df[ , -which(names(df) %in% c("z","u"))]
x ...
How to pass a single object[] to a params object[]
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Undo♦
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answered Aug 30 '08 at 21:36
Adam WrightAdam...
How to join NSArray elements into an NSString?
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Dave DeLongDave DeLong
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