[R] crazy loop error.

[Erik Iverson]

Roy Mathew wrote:
> Thanks for the reply Erik, As you mentioned, grouping consecutive 
> elements of 'a' was my idea. 
> I am unaware of any R'ish way to do it. It would be nice if someone in 
> the community knows this.

Is this the idea you're trying to execute?  It uses ?rle and ?mapply.

a <- c(2,3,5,5,5,6,6,7)
mapply(rep, "hello", rle(a)$lengths, USE.NAMES = FALSE)

[[1]]
[1] "hello"

[[2]]
[1] "hello"

[[3]]
[1] "hello" "hello" "hello"

[[4]]
[1] "hello" "hello"

[[5]]
[1] "hello"