[R] Adding Scale to image

Vladimir Eremeev wl2776 at gmail.com
Tue Jan 30 14:39:04 CET 2007

Dr. med. Peter Robinson wrote:
> I have used the image() function to show a heat plot of a matrix of data 
> whose intensity  is color-coded. I have two questions that I have not 
> been able to solve by using the help system or google.
> 1) How can one add a scale/legend that shows what numerical values a 
> given color corresponds to?
by plotting one more sequence of points
For example

image( blah blah blah )

Dr. med. Peter Robinson wrote:
> 2) How can one "flip" the rows (i.e., change the order of the rows in 
> the image plot)?

By flipping the source matrix, displayed with "image"

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