Dear R users,

Please consider the following example:

tmp <- matrix(rnorm(100),10,10)
tmp[upper.tri(tmp, diag = TRUE)] <- NA
heatmap(tmp, col = heat.colors(200), Rowv=NA, Colv=NA)

I have three questions:

(1) How would I change the axis labels from 1:10 to c("apples", "pears", 
"bananas", "kiwis", "watermelons", "grapefruits", "strawberries", "blueberries", 
"cherries", "grapes")?

(2) How would I put the axis labels to the top and right, rather than on the 
bottom and left?

(3) How would I add a key (with the appropriate color ramp) to the bottom right 
corner of the graph? (I recognize that this can be done with the "Key = TRUE" 
option of the heatmap.2 function in the gplots package, but I want to use that. 
I want to make the key myself so that I can fully customize it.)

Thank you all very much in advance.
Josh Banta, Ph.D
Center for Genomics and Systems Biology
New York University
12 Waverly Place
New York, NY 10003

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