title: How can I make multipanel plots of several png files in R?
body: <p>I want to plot these png files side-by-side (from <a href="http://www.atmos.uw.edu/~akchen0/CERES_Project/" rel="nofollow">http://www.atmos.uw.edu/~akchen0/CERES_Project/</a> ) - arranged in a 2x1 or a 3x1 panel. I've already installed readPNG.</p>