Is there a long-term trend toward more or fewer ramen restaurants relative to sushi restaurants? Is there a correlation of this index with the state of the Japanese economy?
% Number of Sushi Restaurants in Tokyo (東京都のすし屋の店舗数) % Number of Ramen Shops in Tokyo (東京都のラーメン屋の店舗数) t1 = time1439; d1 = data1439; t2 = time1440; d2 = data1440; tn = unique([t1; t2]); tn(tn < max(t1(1),t2(1))) = ; tn(tn > min(t1(end),t2(end))) = ; d1n = interp1(t1,d1,tn); d2n = interp1(t2,d2,tn); plot(tn,d1n./d2n); title('Tokyo Ramen-to-Sushi Index (ramen/sushi)') datetick
Created 14 Feb 2012 by Teja Muppirala
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This trend is associated in this plot (though may not be used.)