[R] String question

[Knut Krueger]

Hi to all

I need a string like
temp <- paste("m1","m2","m3",sep=",")
But i must know how many items are in the string,afterwards
the other option would be to use a vector
temp <- c("m1","m2","m3")
No problem to get the count of items but I must get afterwards the 
string  "m1,m2,m3"
No problem to build the string with a loop, but it should be more easy 
but it seems that I am looking to the wrong functions.

Kind regards Knut