Hi, Try this: list1<-list(c(50000, 101), c(1e+05, 46), c(150000, 31), c(2e+05, 17), c(250000, 19), c(3e+05, 11), c(350000, 12), c(4e+05, 25), c(450000, 19), c(5e+05, 16))
res<-t(sapply(list1,function(x) x)) res # [,1] [,2] #[1,] 50000 101 #[2,] 100000 46 #[3,] 150000 31 #[4,] 200000 17 #[5,] 250000 19 #[6,] 300000 11 #[7,] 350000 12 #[8,] 400000 25 #[9,] 450000 19 #[10,] 500000 16 is.matrix(res) #[1] TRUE #or res1<-sapply(list1,function(x) x) is.matrix(res1) #[1] TRUE A.K. ----- Original Message ----- From: Sam Steingold <s...@gnu.org> To: r-help@r-project.org Cc: Sent: Tuesday, December 4, 2012 3:09 PM Subject: [R] list to matrix? How do I convert a list to a matrix? --8<---------------cut here---------------start------------->8--- list(c(50000, 101), c(1e+05, 46), c(150000, 31), c(2e+05, 17), c(250000, 19), c(3e+05, 11), c(350000, 12), c(4e+05, 25), c(450000, 19), c(5e+05, 16)) as.matrix(a) [,1] [1,] Numeric,2 [2,] Numeric,2 [3,] Numeric,2 [4,] Numeric,2 [5,] Numeric,2 [6,] Numeric,2 [7,] Numeric,2 [8,] Numeric,2 [9,] Numeric,2 --8<---------------cut here---------------end--------------->8--- thanks! -- Sam Steingold (http://sds.podval.org/) on Ubuntu 12.04 (precise) X 11.0.11103000 http://www.childpsy.net/ http://palestinefacts.org http://dhimmi.com http://jihadwatch.org http://www.PetitionOnline.com/tap12009/ http://memri.org Rhinoceros has poor vision, but, due to his size, it's not his problem. ______________________________________________ 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.
