Re: [R] how to get the miminum value in the list
Hi r-help-boun...@r-project.org napsal dne 19.06.2011 20:45:04: > > Hi: > > It's just an extra step: > > y <- list(list(c(1,5),c(2,3,4)), list(c(1, 3, 4), c(5, 7))) > lapply(seq_len(length(y)), function(i) lapply(y[[i]], min)) > [[1]] > [[1]][[1]] > [1] 1 > > [[1]][[2]] > [1] 2 > > [[2]] > [[2]][[1]] > [1] 1 > > [[2]][[2]] > [1] 5 > > unlist(lapply(seq_len(length(y)), function(i) lapply(y[[i]], min))) > [1] 1 2 1 5 Or you can use rapply rapply(y, min) [1] 1 2 1 5 Regards Petr > > HTH, > Dennis > > On Sun, Jun 19, 2011 at 8:25 AM, jiliguala wrote: > > > > but in my case, the list is a two-variable list, list[[j]][[i]] > > > > when i use > > > > lapply(list, min) > > > > it appears > > """Error in FUN(X[[1L]], ...) : invalid 'type' (list) of argument""" > > > > thanks > > > > -- > > View this message in context: http://r.789695.n4.nabble.com/how-to-get- > the-miminum-value-in-the-list-tp3609013p3609433.html > > Sent from the R help mailing list archive at Nabble.com. > > > > __ > > 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. > > > > __ > 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. __ 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.
Re: [R] how to get the miminum value in the list
Hi: It's just an extra step: y <- list(list(c(1,5),c(2,3,4)), list(c(1, 3, 4), c(5, 7))) lapply(seq_len(length(y)), function(i) lapply(y[[i]], min)) [[1]] [[1]][[1]] [1] 1 [[1]][[2]] [1] 2 [[2]] [[2]][[1]] [1] 1 [[2]][[2]] [1] 5 unlist(lapply(seq_len(length(y)), function(i) lapply(y[[i]], min))) [1] 1 2 1 5 HTH, Dennis On Sun, Jun 19, 2011 at 8:25 AM, jiliguala wrote: > > but in my case, the list is a two-variable list, list[[j]][[i]] > > when i use > > lapply(list, min) > > it appears > """Error in FUN(X[[1L]], ...) : invalid 'type' (list) of argument""" > > thanks > > -- > View this message in context: > http://r.789695.n4.nabble.com/how-to-get-the-miminum-value-in-the-list-tp3609013p3609433.html > Sent from the R help mailing list archive at Nabble.com. > > __ > 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. > __ 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.
Re: [R] how to get the miminum value in the list
but in my case, the list is a two-variable list, list[[j]][[i]] when i use lapply(list, min) it appears """Error in FUN(X[[1L]], ...) : invalid 'type' (list) of argument""" thanks -- View this message in context: http://r.789695.n4.nabble.com/how-to-get-the-miminum-value-in-the-list-tp3609013p3609433.html Sent from the R help mailing list archive at Nabble.com. __ 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.
Re: [R] how to get the miminum value in the list
Hi, that depends on whether you want to get the minimum within each list element or the global minimum across all list elements. The first is achieved by using lapply(). The second can be achieved by unlisting the list (which assumes that all list elements are numeric) and looking for its minimum. x<-list(c(1,5),c(2,3,4)) lapply(x,min) min(unlist(x)) HTH, Daniel jiliguala wrote: > > hi, R users > > here i have one problem, if i wanna get the minimum value in the normal > data, i can do this, > > ## which(data1==min(data1)). > > but if i want get the minimum value of a list which has two variables > ##list1[[j]][[i]]##, > i tried the codes like this, but it did not work. > > ## which(list1==min(list1)). > > thanks for helping > -- View this message in context: http://r.789695.n4.nabble.com/how-to-get-the-miminum-value-in-the-list-tp3609013p3609325.html Sent from the R help mailing list archive at Nabble.com. __ 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.
