On 02/18/2011 04:31 AM, Alaios wrote:
Dear all when I call color.scale like this:require('plotrix') colcolor<-color.scale(c(range_sr,sr),extremes=c("red","blue")) Error in if (min(reds)< 0 || max(reds)> 1) reds<- rescale(reds, c(0, : missing value where TRUE/FALSE needed range_sr [1] -10.00000000000000 44.02977813958366 str(sr) num [1:100, 1:100] 2.54 2.71 2.89 2.95 3.03 ... this was working on simpler data sets before. How can I understand more what was the problem in depth.? I have read the source code of color.scale but unfortunately I did not make any progress to understand this error message. Is it possible to raise an exception before the error happens and see what went wrong?
Hi Alex, When you concatenate (c) the extremes and the matrix, you get a vector: > sr<-matrix(runif(10000,-10,44.03),100,100) > str(sr) num [1:100, 1:100] 11.2 27.13 4.13 -4.46 26.44 ... > sr_colors<-color.scale(c(-10,44.03,sr)) > str(sr_colors) chr [1:10002] "#000000" "#FFFFFF" "#646464" "#AFAFAF" "#434343" ... Recreate the matrix: sr_colors<-matrix(sr_colors[-(1:2)],100,100) and all should be well. Jim ______________________________________________ [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 and provide commented, minimal, self-contained, reproducible code.
