[R] R column assignment fails for lists

[Yasir Suhail]

Dear R developers and users,

Consider the object :

> a <- data.frame(a=c(1,2), b=c(2,3), c=c("a,b","c,d"), stringsAsFactors = F)
> a$c <- strsplit(a$c, ",")

Re-assignment works fine for columns 1 and 2, but fails for column 3. If a
is a valid object, the assignment should work.

> a[,1] <- a[,1]
> a[,2] <- a[,2]
> a[,3] <- a[,3]
Warning message:
In `[<-.data.frame`(`*tmp*`, , 3, value = list(c("a", "b"), c("c",  :
  provided 2 variables to replace 1 variables

	[[alternative HTML version deleted]]