The function purrr::cross() can help you with this. For example: f <- function(states, nsteps, first, last) { paste(first, unlist(lapply(purrr::cross(rep(list(v),nsteps-2)), \(x) paste(unlist(x), collapse=""))), last, sep="") } f(LETTERS[1:5], 3, "B", "E") [1] "BAE" "BBE" "BCE" "BDE" "BEE"
HTH, Eric On Mon, Sep 4, 2023 at 3:42 PM Christofer Bogaso <bogaso.christo...@gmail.com> wrote: > > Let say I have 3 time points.as T0, T1, and T2.(number of such time > points can be arbitrary) In each time point, an object can be any of 5 > states, A, B, C, D, E (number of such states can be arbitrary) > > I need to find all possible ways, how that object starting with state > B (say) at time T0, can be on state E (example) in time T2 > > For example one possibility is BAE etc. > > Is there any function available with R, that can give me a vector of > such possibilities for arbitrary number of states, time, and for a > given initial and final (desired) states? > > ANy pointer will be very appreciated. > > Thanks for your time. > > ______________________________________________ > 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.