On 7/19/2013 12:54 PM, Pete Brecknock wrote:
Hi
I am trying to add the contents of the list "myList" to a new column "z"
in
the data frame "myDataframe"
myList <- list(c("A1","B1"), c("A2","B2","C2"), c("A3","B3"))
myDataframe <- data.frame(x=c(1,2,3), y=c("R","S","T"))
Would like to produce
x y z
1 R A1,B1
2 S A2,B2,C2
3 T A3,B3
myDataframe$z <- sapply(myList, paste0, collapse=",")
where z is a character string holding the contents of the different
elements
of the list.
Any thoughts greatly appreciated.
Pete
--
Brian S. Diggs, PhD
Senior Research Associate, Department of Surgery
Oregon Health & Science University