> DF <- data.frame(x=1:4, y=rep(1,4)) > foo <- function(x, y)x+y > foo(DF$x, DF$y) [1] 2 3 4 5
hth. spencer graves
peter leonard wrote:
Hi,
I have a function foo(x,y) and a dataframe, DF, comprised of two vectors, x & w, as follows :
x w 1 1 1 2 2 1 3 3 1 4 4 1
etc
I would like to apply the function foo to each 'pair' within DF e.g foo(1,1), foo(2,1), foo(3,1) etc
I have tried
apply(DF,foo) apply(DF[,],foo) apply(DF[DF$x,DF$w],foo)
However, none of the above worked. Can anyone help ?
Thanks in advance, Peter
______________________________________________ [EMAIL PROTECTED] mailing list https://www.stat.math.ethz.ch/mailman/listinfo/r-help
______________________________________________ [EMAIL PROTECTED] mailing list https://www.stat.math.ethz.ch/mailman/listinfo/r-help
