This graphic illustration shows local currency comparisons  by plotting the price of a Big 
Mac in several different countries. The over under of currency is also accounted for in this 
illustration.
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);