[R] Tweaking my plot of matrix as image

Jim Lemon jim at bitwrit.com.au
Thu Apr 12 12:55:52 CEST 2007

Wee-Jin Goh wrote:
> Greetings list,
> I have a rectangular 20 x 20 matrix with values in the range of [0 ,  
> 1]. I'd like to plot it as an image. To that end, I have used the  
> image() function that seems to do what I want. Now, I just want to  
> tweak it to look perfect. So here is my question:
> At the moment, the values of the axis range from [0, 1]. I want it to  
> show the row and column of the matrix. How do I do that?
Perhaps color2D.matplot will suit you. It automatically shows the row 
and column indices on the plot in the same order as conventional matrix 


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