[R] modify rectangle color from image
saurav at sas.upenn.edu
Wed Jan 24 23:06:43 CET 2007
Saurav Pathak [Wed, Jan 24, 2007 at 04:37:20PM -0500]:
+ I need some suggestion on how I could modify the color on some
+ rectangle that I have created using "image".
+ In other words, I have a 5x5 matrix, say, m.
+ m <- matrix(rnorm(25), nrow=5)
+ I create a grid of rectangles by:
+ Now I want to change the color of rectangle (3,3) to blue.
using rect for this.
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