It turned out that rearranging the data was indeed the key to get the image I
want. The way I do it now is this:
tt <- read.csv(file="file.csv", header=T, sep=",", dec=".",
stringsAsFactors=F)
names(tt) <- c('time','abs')
dat <- with(tt, table(time, abs))
image(dat,col=rainbow(256))
I'm now modifying the rainbow color palette to match my needs. Also, the
X-axis and Y-axis display values between 0 and 1, so I want to change them
to show the actual time and abs values.
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