[R] image() with color key?
Is there an easy way to plot a color key next to a color image (with image() in graphics package)? The color key should also include a numerical scale, so that the colors can be cross-referenced with image intensity values. I see that levelplot has a facility for color keys, but with image it seems less straightforward, i.e. generating a color key is not an option in image(). Thank you! Michael Jerosch-Herold __ [EMAIL PROTECTED] mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html
Re: [R] image() with color key?
On Friday 03 September 2004 14:42, Michael Jerosch-Herold wrote: Is there an easy way to plot a color key next to a color image (with image() in graphics package)? The color key should also include a numerical scale, so that the colors can be cross-referenced with image intensity values. I see that levelplot has a facility for color keys, but with image it seems less straightforward, i.e. generating a color key is not an option in image(). Does filled.contour() give you what you want? Deepayan __ [EMAIL PROTECTED] mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html
RE: [R] image() with color key?
In some applications, e.g., visualizing the values of the wells in a 96 well (8 x 12) assay plate, the matrix of results is truly discrete and you want to visualize it that way. image() does this, but not filled.contour() AFAIK. If that's correct, the only way I know how to do it is to overlay two plots (par(new=FALSE)),one for the data and the other for the legend. This is certainly not trivial, but it's not impossibly hard, either. I hope I'm wrong on this, though, as I'd welcome an easier way, too. -- Bert Gunter Genentech Non-Clinical Statistics South San Francisco, CA The business of the statistician is to catalyze the scientific learning process. - George E. P. Box Does filled.contour() give you what you want? Deepayan __ [EMAIL PROTECTED] mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html __ [EMAIL PROTECTED] mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html
Re: [R] image() with color key?
Hi, Michael Did you try 'image.plot' in the 'fields' package? Christophe - Original Message - From: Michael Jerosch-Herold [EMAIL PROTECTED] To: [EMAIL PROTECTED] Sent: Friday, September 03, 2004 9:42 PM Subject: [R] image() with color key? Is there an easy way to plot a color key next to a color image (with image() in graphics package)? The color key should also include a numerical scale, so that the colors can be cross-referenced with image intensity values. I see that levelplot has a facility for color keys, but with image it seems less straightforward, i.e. generating a color key is not an option in image(). Thank you! Michael Jerosch-Herold __ [EMAIL PROTECTED] mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html __ [EMAIL PROTECTED] mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html
