[R] Display Large Matrix as an Image

baptiste auguie baptiste.auguie at googlemail.com
Mon May 17 21:09:28 CEST 2010


Hi,

try this,


m = matrix(runif(2000*2400), nrow=2000)
library(grid)
grid.raster(m)

HTH,

baptiste

On 17 May 2010 20:35, tetonedge <derek at tetonedge.net> wrote:
>
> I have a matrix that is 2400x2000 and I would like to display it as an image,
> I have tried image(), but due to the size of the matrix the drawing of the
> plot is extremely slow. Does anybody know of any fast ways to visualize such
> a large matrix. Thanks
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