Dear R-help, Could any of you direct me to a function for plotting a grid of colours, directly specified by a matrix of hex colour codes? In other words I'm looking for a heatmap() or image()-like function to which I can specify the colour of each grid location directly, rather than providing a numerical matrix and a 1D-colour scale (heatmap, image, levelplots,NeatMap...). I'm surprised I haven't found anything simple with RSiteSearch, help.search, net.
I'd like to use this function to encode one variable as "chroma" and a second as "luminance" (hcl colour space), so that the two variables can be visualised in a single heatmap (the variable are fold-change and a q-value, a significance measure). If anyone has any thoughts/warnings to offer re this idea then I'd love to hear them (it must have been tried before, but I've not come across any examples) . Best wishes and thank you, Peter Davenport [[alternative HTML version deleted]] ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.