You should be more specific about what you want to replace and with what. The pattern you use, namely "[0-9][0-9]/[0-9[0-9].*com", does not (AFAICS) match any of the strings in your data, so don't be surprised that your commands do not change anything.
If you have a correct pattern and replacement and all lists have depth 3, using something like lapply(mylist, lapply, lapply, function(y) gsub(pattern, replacement, y)) should work. If your list has a variable depth, I would use a recursive function, something like recursiveGSub = function(x, pattern, replacement) { if (is.atomic(x)) gsub(pattern, replacement, x) else lapply(x, recursiveGSub, pattern, replacement) } Example: lst = list("a001", list("b001", list("c001", "d001"))) lst recursiveGSub(lst, "00", "") HTH, Peter On Thu, Oct 25, 2018 at 6:04 PM Ek Esawi <esaw...@gmail.com> wrote: > > Hi All— > > I have a list that contains multiple sub-lists and each sub-list > contains multiple sub(sub-lists), each of the sub(sub-lists) is made > up of matrices of text. I want to replace some of the text in some > parts in the matrices on the list. I tried gsub and stringr, > str_remove, but nothing seems to work > > I tried: > > lapply(mylist, function(x) lapply(x, function(y) > gsub("[0-9][0-9]/[0-9[0-9].*com","",y))) > lapply(mylist, function(x) str_remove(x,"[0-9][0-9]/[0-9[0-9].*com")) > > Any help is greatly apprercaited. > > > > mylist—this is just an example > > [[1]] > [[1]][[1]] > [[1]][[1]][[1]] > [,1] [,2] [,3] [,4] [,5] > [1,] "12/30 12/30" "ABABABABABAB" "8.00" > [2,] "01/02 01/02" "AAAAAAAAAAAA”. “99" > [3,] "01/02 01/02" "CACACACACACC” "55.97" > > [[1]][[1]][[2]] > [,1] [,2] > [1,] "12/30 12/30" "DDDDDDDDDDDDDDD” “29" > [2,] "12/30 12/30" :GGGGGGGGGGGGGGG” “333” > > [[1]][[2]] > [[1]][[2]][[1]] > [,1] [,2] [,3] [,4] [,5] > [1,] "01/02 01/02" "ThankYou" “23” > [2,] "01/02 01/02" "Standard data" "251" > > ______________________________________________ > R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see > 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. ______________________________________________ R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see 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.