Hi, I am trying to plot my dataset, consisting of one column with numeric values and one column with group IDs. The set is similar to the following df.
df <- NULL for ( i in 1:20) { tmp1 <- runif(1000,0,5) tmp2 <- cbind(tmp1,i) df <- rbind(df,tmp2) } Now I would like to plot the numeric column, stratified by the group IDs, in a single figure. First, I partitioned the frame into a 1x20 array. Then I plot the numeric values of each group in a sub-plot. Note that only should the left most y-axis be shown, and the x-axis is only the group numbers. Also the margin between two sub-frame should be fairly small so it looks like only one figure, rather than 20 figures. The following codes were used to achieve my goal, but I got an error saying figure margins too large. cols <- sample(rainbow(20)) par(mfrow=c(1,20)) for ( i in 1:20) { tmp <- subset(df, df[,2]==i) if(i!=1) { plot(df[,1],axes=F,col=cols[i],frame.plot=F,xlab=NA,pch=19,ylim=c(0,5)) mtext(i, line=1,side=1) } else{ plot(df[,1],axes=F,col=cols[i],frame.plot=F,xlab=NA,pch=19,ylim=c(0,5)) axis(2,at=0:5) mtext(i, line=1,side=1) } } I also tried to set the margins by modifying the _par_ command: par(mfrow=c(1,20),mar=(4,2,4,0.05)) Still, received the same error. The other experiment: While I was using the following codes, it almost showed what I would like, but the figure ended with only the last sub-plot. The only difference between the two is I was attempting to add a main-label in the figure. cols <- sample(rainbow(20)) par(mfrow=c(1,20),mar=c(4,0.05,3,0.05)) plot.new() mtext("Multiple figures in a plot",line=1,at=13) for ( i in 1:20) { tmp <- subset(df, df[,2]==i) if(i!=1) { plot(df[,1],axes=F,col=cols[i],frame.plot=F,xlab=NA,pch=19,ylim=c(0,5)) mtext(i, line=1,side=1) } else{ plot(df[,1],axes=F,col=cols[i],frame.plot=F,xlab=NA,pch=19,mar=c(4,4,3,0.05),ylim=c(0,5)) axis(2,at=0:5) mtext(i, line=1,side=1) } } Any suggestions and advices are welcome. Thanks, Mike ______________________________________________ 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.