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How can I interrupt a ServerSocket accept() method?
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Simon GroenewoltSimon Groenewolt
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What does “./” (dot slash) refer to in terms of an HTML file path location?
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answered Sep 29 '11 at 1:02
CoomieCoomie
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How can I do division with variables in a Linux shell?
.../ 3' | bc -l
– Eugene
Oct 17 '17 at 11:28
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How does one parse XML files? [closed]
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answered Sep 11 '08 at 5:05
Jon GallowayJon Galloway
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Guava: Why is there no Lists.filter() function?
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dimo414
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answered Dec 10 '11 at 22:16
Dimitris AndreouDimitris Andreou
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warning: implicit declaration of function
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edited Dec 9 '11 at 3:53
answered Dec 9 '11 at 3:50
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How can I get jquery .val() AFTER keypress event?
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answered Jun 17 '10 at 16:11
Hooray Im HelpingHooray Im Helping
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Case insensitive comparison NSString
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edited Apr 7 '19 at 11:08
Cœur
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answ...
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...
“Comparison method violates its general contract!”
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