Good morning, I wrote a little code in R which has to show two graphs but I can get only one. How can I adress the graphs in two files? Second, I'd like, always in the same code, to add a legend to a graph. Better, I'd like to put in such a legend a new item whose color could remind the colour ol the columns it refers to in the plot. I wrote: leg.txt<-c("control people", "radiated ill people", "radiated healthy people", "pesticide exposed people") leg.col<-c("lightblue", "gray", "lightcyan","lavender") grA<-barplot(seqA, type = "h", col = c(colors),legend.text = c(leg.txt),main = " Number of breaks occured on cluster A bands on patients' sample", xlab = "patient ID", ylab = "breaks number") but I don't know how to assign the right colors to legend's items. Thanks of helping me, Angela -------------- next part -------------- An embedded and charset-unspecified text was scrubbed... Name: rotture_campione_cluster.R Url: https://stat.ethz.ch/pipermail/r-help/attachments/20050113/56dc2f05/rotture_campione_cluster.pl -------------- next part -------------- An embedded and charset-unspecified text was scrubbed... Name: ROTTURE_PER_SOGGETTO_RAD_NO_MALATI_CLUSTER_A.dat Url: https://stat.ethz.ch/pipermail/r-help/attachments/20050113/56dc2f05/ROTTURE_PER_SOGGETTO_RAD_NO_MALATI_CLUSTER_A.pl