[R] vertically oriented color key in heatmaps

[Rajarshi Guha]

Hi, I have some data which I was plotting using image(). I wanted to  
add a vertical color key to the plot and I found that heatmap.2 in  
gplots does let me add a color key. However, I was thinking of a  
vertical bar with the color range rather than  the style that gplots  
provides.

Is there any package (or code snippet) that would let me add a  
vertical color key to an image() or heatmap plot?

Thanks,

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Rajarshi Guha  <rguha at indiana.edu>
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