Re: [R] 2D Matrix Plot

From: Jim Lemon <bitwrit_at_ozemail.com.au>
Date: Tue 27 Dec 2005 - 13:29:56 EST

Jaydutt Bhalshankar wrote:
> Hello Everyone,
>
> I am Naive user of 'R' statistical environment and still i'm in learning
> mode.
>
> I would like to know how to plot 2D data graphically. i.e. how to color code
> each cell in 2D Matrix depending on it's value --- red equals bigger numbers
> and blue indicates smaller.
>
> For example my 2D matrix is
>
> *4* *109.32* *108.06* *104.48* *3* *111.9* *105* *107.56* *2* *115.32* *
> 113.28* *111.3* *1* *117.8* *116.74* *116.42* *0* *123.06* *122.66* *123.68*
> ** *0* *1* *2*

Hi Jaydutt,

Have a look at the color.scale function in the plotrix package. It might do what you want in terms of generating a color scale corresponding to the numerical values in your matrix.

Jim



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