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Linux command or script counting duplicated lines in a text file?
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answered Jun 22 '11 at 22:55
borribleborrible
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How to add title to subplots in Matplotlib?
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JaradJarad
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Allow User to input HTML in ASP.NET MVC - ValidateInput or AllowHtml
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11 Answers
11
Active
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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...
Is a statically-typed full Lisp variant possible?
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Owen S.Owen S.
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Differences between Intent and PendingIntent
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Chris
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answered Jun 17 '14 at 10:53
Siddharth_VyasSiddhart...
Difference between “@id/” and “@+id/” in Android
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answered Feb 17 '11 at 7:00
Aman AlamAman Alam
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How are booleans formatted in Strings in Python?
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danbendanben
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What is the default form HTTP method?
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Jon SeigelJon Seigel
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How do I instantiate a Queue object in java?
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answered Jan 7 '11 at 15:03
Edwin BuckEdwin Buck
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