[R] Partitioning matrix

Let say, I have following matrix : dat - matrix(rnorm(40), 2, 20) Now I want to partition this like this : dat1 - dat[1,] dat2 - dat[2,] But point is that, dat1 and dat2 become vector object. How can I force them to be matrix object with dimension (1x20) ? Thanks, -- View this message in

Re: [R] Partitioning matrix

Bogaso wrote: Let say, I have following matrix : dat - matrix(rnorm(40), 2, 20) Now I want to partition this like this : dat1 - dat[1,] dat2 - dat[2,] But point is that, dat1 and dat2 become vector object. How can I force them to be matrix object with dimension (1x20) ? To

Re: [R] Partitioning matrix

see ?[ and notice the 'drop' argument. So in your example try dat[1, , drop=FALSE] hth, Kingsford On Tue, Jun 23, 2009 at 1:13 AM, Bogasobogaso.christo...@gmail.com wrote: Let say, I have following matrix : dat - matrix(rnorm(40), 2, 20) Now I want to partition this like this :