Does this work for you? t0<-t1<-t2<-LETTERS[1:5] al2<-expand.grid(t0, t1, t2) al3<-paste(al2$Var1, al2$Var2, al2$Var3) al4 <- gsub(" ", "", al3) head(al3)
Tim -----Original Message----- From: R-help <r-help-boun...@r-project.org> On Behalf Of Eric Berger Sent: Monday, September 4, 2023 10:17 AM To: Christofer Bogaso <bogaso.christo...@gmail.com> Cc: r-help <r-help@r-project.org> Subject: Re: [R] Finding combination of states [External Email] 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%2Fmailman%2Flistinfo%2Fr-help&data=05%7C01%7Ctebert%40ufl.edu > %7C25cee5ce26a8423daaa508dbad51c402%7C0d4da0f84a314d76ace60a62331e1b84 > %7C0%7C0%7C638294338934034595%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAw > MDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&sda > ta=TM4jGF39Gy3PH0T3nnQpT%2BLogkVxifv%2Fudv9hWPwbss%3D&reserved=0 > PLEASE do read the posting guide > http://www.r/ > -project.org%2Fposting-guide.html&data=05%7C01%7Ctebert%40ufl.edu%7C25 > cee5ce26a8423daaa508dbad51c402%7C0d4da0f84a314d76ace60a62331e1b84%7C0% > 7C0%7C638294338934034595%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiL > CJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&sdata=5n > PTLmsz0lOz47t41u578t9oI0i7BOgIX53yx8CesLs%3D&reserved=0 > 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. ______________________________________________ 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.