You probably need to review the Intro to R to understand indexing: > f1 <- function(x) sqrt(x%*%x); > f2 <- function(x) (2*x+1); > L <- list() > L[[1]] <- f1 > L[[2]] <- f2 > L # contains the objects
[[1]] function (x) sqrt(x %*% x) [[2]] function (x) (2 * x + 1) > L[[1]](3) # now call the functions in the list [,1] [1,] 3 > L[[2]](42) [1] 85 > On Tue, Oct 12, 2010 at 11:17 AM, Filoche <pmassico...@hotmail.com> wrote: > > Hi everyone. > > Is it possible in R to create a matrix or a list (vector) or R object. For > instance, I have > > f1 <- function(x) sqrt(x%*%x); > f2 <- function(x) (2x+1); > > I would like to do something like > > L <- List(); > L[1] = f1; > L[2] = f2; > > So, is there a way to create matrix or vector that can contains R object. > > With regards, > Phil > -- > View this message in context: > http://r.789695.n4.nabble.com/List-or-matrix-of-object-tp2992101p2992101.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. > -- Jim Holtman Cincinnati, OH +1 513 646 9390 What is the problem that you are trying to solve? ______________________________________________ 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.