This chart shows the median age of the population of a country and the age of leader of that 
country. There appears to almost no trend between the two. The chart is sorted with the lowest 
median age on top and the highest on the bottom, but the age of the leader varies greatly 
from top to bottom.
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);