Use cex.main or cex.sub to change the size of the title or subtitle in R title(main=”Main title”, cex.main=0.85)
R graph by examples http://rgraphics.limnology.wisc.edu/index.php
R plot with examples http://www.harding.edu/fmccown/r/
Title for muti plots in R mtext(‘Title’, outer=TRUE)
Using a value of a variable in title Use paste and eval. plot(x, main = paste(“Cluster”, eval(i))
Great illustration of plot and margin in R http://research.stowers-institute.org/efg/R/Graphics/Basics/mar-oma/index.htm
2nd axis in R Use axis. side is where the second axis goes. Side 3 is the top x-axis. Side 4 is the right y-axis. With put the 1st axis thick for the at and lab is for the text.
Multi plots in a page gridExtra package makes it easier to put multiple plots generated by ggplot2 in a page equivalent to par(mfrow= ). Example: http://code.google.com/p/gridextra/wiki/arrange came across through a conversation in StackOverflow http://stackoverflow.com/questions/1249548/side-by-side-plots-with-ggplot2-in-r