This graph compares art and stock market returns from a couple of art indices and the S&P 500. Both types of returns are pretty close to each other and both peaked around 2007.
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);