May i please update my question, and I understand now something that i did not yesterday.
In this example: table <- structure(c(4, 7, 0.2, 3, .1, 7, 222, 3, 10, 5, 11, 8, 8, 10, 7), .Dim = c(5L, 3L), .Dimnames = list(c("gene1", "gene2", "gene3", "gene4", "gene5"), c("codon1", "codon2", "codon3"))) Library(ca) > list <-scan("test_list", what=list(gene="")) ### where test_list is a > file containing the words "gene4", "gene5" plot(ca(table, suprow=c(4, 5))) *Question 1: is it possible to change:* plot(ca(table, suprow=c(4, 5))) to either: plot(ca(table, suprow=c(0-100)) ## e.g. a range of numbers (i have about 100 rows that i need to highlight, so i'd rather not do manually) or: plot(ca(table, suprow=c(test_list))) ### where i've given it a file with list of nodes, and R can find the rows that these nodes are on and highlight these. And then my second question is the same as previous regarding the plot output, is it possible to shade rather than have open circles. Many thanks. -- View this message in context: http://r.789695.n4.nabble.com/find-points-on-a-graph-tp4452746p4459001.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.