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Pass a data.frame column name to a function
...ou can just use the column name directly:
df <- data.frame(A=1:10, B=2:11, C=3:12)
fun1 <- function(x, column){
max(x[,column])
}
fun1(df, "B")
fun1(df, c("B","A"))
There's no need to use substitute, eval, etc.
You can even pass the desired function as a parameter:
fun1 <- function(x...
Find all elements on a page whose element ID contains a certain text using jQuery
...nd worked
– Carlos López Marí
Jan 11 at 18:07
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pinpointing “conditional jump or move depends on uninitialized value(s)” valgrind message
...ind 3.4.0
– mark4o
Jun 16 '10 at 15:11
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How do I view an older version of an SVN file?
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chrischris
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Why is there huge performance hit in 2048x2048 versus 2047x2047 array multiplication?
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edited May 19 '11 at 19:37
answered May 19 '11 at 17:58
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NerdTree - Reveal file in tree
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edited Oct 8 '11 at 13:52
answered Oct 7 '11 at 20:01
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Stash just a single file
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Wes HardakerWes Hardaker
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Connect to a locally built Jekyll Server using mobile devices in the LAN
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answered May 17 '13 at 12:11
pauljzpauljz
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Meaning of Open hashing and Closed hashing
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The use of "closed" vs. "open" reflects whether or not we are locked in to using a certain pos...
PendingIntent does not send Intent extras
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Yuliia AshomokYuliia Ashomok
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