Lorenzo, This is a bit ugly but should work. Instead of using plotrix's show.values, use the text() command:
for(i in 1:5) { for(j in 1:5) { text(i-0.5,j-0.5,format(A[6-j,i],digits=3),col="white") } } -- View this message in context: http://r.789695.n4.nabble.com/Plotrix-Trick-tp2265893p2266390.html Sent from the R help mailing list archive at Nabble.com. ______________________________________________ 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.