Hi:

One possibility is a heatmap, although there are other approaches.

x <- matrix(sample(1:100, 10000, replace = TRUE), nrow = 100)
image(x)
xx <- apply(x, 1, sort)   # sorts the rows of x
image(xx)

# ggplot2 version:
library(ggplot2)
ggplot(melt(x), aes(x=X1, y=X2, fill=value)) + geom_tile() +
  scale_fill_gradientn(colour = terrain.colors(10))

See the online help page http://had.co.nz/ggplot2/scale_gradientn.html
for several examples of choosing color ranges in scale_fill_gradientn(). To
get similar control over image, change the col = argument according to the
description on the help page of image - ?image .

Another alternative is an enhanced heatmap function in package gplots. I'll
leave that to you to investigate...

HTH,
Dennis

On Thu, Sep 9, 2010 at 12:22 AM, Alaios <alaios@yahoo.com> wrote:

> Hello everyone.. Is there any graphical tool to help me see what is inside
> a
> matrix? I have 100x100 dimensions matrix and as you already know as it does
> not
> fit on my screen R splits it into pieces.
>
> I would like to thank you in advance for your help
> Best Regards
> Alex
>
>
>
>
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