This chart visualizes the number of newspaper articles mentioning the word "recession." From 
the year 1990 to the year 2007, the number of articles mentioning "recession" is relatively 
constant from 0 mentions upwards to 2,500. From 2008-2009, the data peaks at around 4,000, 
which makes sense because the recession hit it 2008. We see the number of mentions taper off 
after 2009/2010.
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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);