search for: resultshould

Hi Everybody I have the following problem suppose that we a<-c("uno","dos","tres") I am working with a while cycle and the idea is in each iteration adding an item to a list In the first iteration the resultshould be: [[1]] [1] "uno" In the second [[1]] [1] "uno" [[2]] [1] "dos" And the final result [[1]] [1] "uno" [[2]] [1] "dos" [[3]] [1] "tres" How can I do that Thx again -- Alberto [[alternative HTML version deleted]]