This charts shows the forecast for 2015, compared to 2010, in internet traffic in various 
developed countries. It shows the amount of gigabytes used per month per person. 
Error using .*
Matrix dimensions must agree.

Error in plotSpotlight (line 30)
    output = repmat(a,[1 1 3]).*single(im)/255;

Error in plot_individual_user_maps (line 49)
        [heat] = plotSpotlight(im,heatmap,3);