On Thu, Jul 12, 2012 at 05:22:45AM -0700, purushothaman wrote: > hi, > > sorry it's not 2 different list all item in same list like this > > a[1]="abc" > a[2]="def" > ... > output ="abc def ..." Hi. Try this a <- list("abc", "def", "ghi") paste(a, collapse=" ") [1] "abc def ghi" Hope this helps. Petr Savicky.