R help - May 2010 - Display Large Matrix as an Image

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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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
> --
> View this message in context:
http://r.789695.n4.nabble.com/Display-Large-Matrix-as-an-Image-tp2220139p2220139.html
> Sent from the R help mailing list archive at Nabble.com.
>
> ______________________________________________
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> PLEASE do read the posting guide
http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.
>

That works great, thanks
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