Re: [R] read a file into a matrix

2009-11-20 Thread jim holtman
What is wrong with the "extra step"? Is it taking too much time (you did not specify that), is it taking too much memory? How many times are you going to be doing it? If not many, then may be it is OK. You have to quantify what you are asking for. It may take longer to send a message to R-Help

Re: [R] read a file into a matrix

2009-11-20 Thread David Winsemius
On Nov 20, 2009, at 1:01 PM, Peng Yu wrote: On Sat, Nov 21, 2009 at 11:55 AM, Steve Lianoglou wrote: read.delim gives me a data.frame. Is there a function that can return the result in a matrix rather than data.frame? m <- as.matrix(read.delim(..)) I knew this approach. But this takes a

Re: [R] read a file into a matrix

2009-11-20 Thread Benilton Carvalho
I can't think of anything that is already built in. But you can always: read.as.matrix <- function(...) as.matrix(read.delim(...)) and now you get one step only ;-) b On Nov 20, 2009, at 4:01 PM, Peng Yu wrote: On Sat, Nov 21, 2009 at 11:55 AM, Steve Lianoglou wrote: read.delim gives me a

Re: [R] read a file into a matrix

2009-11-20 Thread Peng Yu
On Sat, Nov 21, 2009 at 11:55 AM, Steve Lianoglou wrote: >> read.delim gives me a data.frame. Is there a function that can return >> the result in a matrix rather than data.frame? > > m <- as.matrix(read.delim(..)) I knew this approach. But this takes an extra step. Is there a command that read a

Re: [R] read a file into a matrix

2009-11-20 Thread Steve Lianoglou
read.delim gives me a data.frame. Is there a function that can return the result in a matrix rather than data.frame? m <- as.matrix(read.delim(..)) -steve -- Steve Lianoglou Graduate Student: Computational Systems Biology | Memorial Sloan-Kettering Cancer Center | Weill Medical College o