colname refered by a variable
try this ..
df[,colnames(df)==paste("A","C",sep="")]
On Fri, Dec 3, 2010 at 12:05 PM, Yuan Jian <jayuan2008 at yahoo.com> wrote:
Hello, I tried to use a?variable to refer colname, but I got error, could anyone give me advice?
df=data.frame(cbind(AB=1:3,AC=3:5)) df$AC
[1] 3 4 5
df$paste("A","C",sep="")
Error: attempt to apply non-function thanks Jian ? ? ? ?[[alternative HTML version deleted]]
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