Thanks All, Henrique, gave me the solution is was looking for, the indexing was a mistake on my part.
Thanks again On 23 June 2011 16:37, David Winsemius <dwinsem...@comcast.net> wrote: > > On Jun 23, 2011, at 11:19 AM, Uwe Ligges wrote: > > >> >> On 23.06.2011 16:39, Michael Pearmain wrote: >> >>> Hi All, >>> >>> I've been given a data file of the form: >>> 1: 3,4,5,6 >>> 2:1,2,3 >>> 43: 5,7,8,9,5 >>> >>> and i want to read this data in as a list to create the form: >>> (guessing final look) >>> my.list >>> [[1]] >>> [1] 3 4 5 6 >>> >>> [[2]] >>> [1] 1 2 3 >>> >>> [[43]] >>> [1] 5 7 8 9 5 >>> >>> I can get to a stage using scan: >>> scan("my.data", what = character(0), quiet = TRUE) >>> to load >>> [1] "1: 3,4,5,6" >>> [2] "2:1,2,3" >>> [3] "43: 5,7,8,9,5" >>> >> >> >> I don't understand why you want 40 empty list elements, but here is what >> you asked for (not optimized, just hacked in few seconds): >> >> temp <- strsplit(d, ":") >> num <- as.numeric(sapply(temp, "[[", 1)) >> L <- vector(mode = "list", length = max(num)) >> for(i in seq_along(temp)){ >> L[[num[i]]] <- as.numeric(unlist(strsplit(**temp[[i]][2], ","))) >> } >> L >> > > I wondered about that too. Perhaps he would be satisfied with alpha > indexing: > > d <- c( "1: 3,4,5,6", "2:1,2,3", "43: 5,7,8,9,5") > temp <- strsplit(d, ":") > num <- sapply(temp, "[[", 1) > L <- vector(mode = "list") > > for(i in seq_along(temp)){ > L[[num[i]]] <- as.numeric(unlist(strsplit(**temp[[i]][2], ","))) > } > > > L > $`1` > > [1] 3 4 5 6 > > $`2` > [1] 1 2 3 > > $`43` > [1] 5 7 8 9 5 > > > Uwe Ligges >> >> >> >> but im not sure on how next to proceed to arrange this into a list form, >>> can >>> anyone offer some advise? >>> >>> Thanks in advance >>> >>> Mike >>> >> > > > David Winsemius, MD > West Hartford, CT > > [[alternative HTML version deleted]] ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.