FoodDiversity

Motivation for this project.

The diversity values are calculated by going through the number of unique food venues in each zip code. As the number of unique food venues in a zip code increases the diversity index, also known as the Shannon index, increases. The normalized entropy values, also known as equitability values, are the diversity values divided by the natural log of the number of food venues in each county. As this ratio approaches a value of one the diversity of food venues in a zip code is maximized at a value of one. How all of these maps were generated are posted in this article. All of the food venue diversity data was calculated using this script and the 2011 business list for California. A comparison of food venue equitability in California for areas ranked as food deserts by each of the three USDA criteria.
 * Food venue type || Standard Industrial Classification number (SIC) || Food venue data (CA 2011) || Diversity data (CA 2011) || Combined data || Map ||
 * Grocery Store || 5411 || [[file:SIC5411.csv]] || [[file:SIC5411output.csv]] || [[file:SIC5411ZipAndEntropy.csv]] || Grocery store map ||
 * Meat and Fish (Seafood) Markets, including Freezer Provisioners || 5421 || [[file:SIC5421.csv]] || [[file:SIC5421output.csv]] || [[file:SIC5421ZipAndEntropy.csv]] || Meat and fish market map ||
 * Fruit and Vegetable Markets || 5431 || [[file:SIC5431.csv]] || [[file:SIC5431output.csv]] || [[file:SIC5431ZipAndEntropy.csv]] || Fruit and vegetable market map ||
 * Candy, Nut, and Confectionery Stores || 5441 || [[file:SIC5441.csv]] || [[file:SIC5441output.csv]] || [[file:SIC5441ZipAndEntropy.csv]] || Candy, nut, and confectionery map ||
 * Dairy Products Stores || 5451 || [[file:SIC5451.csv]] || [[file:SIC5451output.csv]] || [[file:SIC5451ZipAndEntropy.csv]] || Dairy product stores map ||
 * Eating Places || 5812 || [[file:SIC5812.csv]] || [[file:SIC5812output.csv]] || [[file:SIC5812ZipAndEntropy.csv]] || Eating places map ||
 * Drinking Places (Alcoholic Beverages) || 5813 || [[file:SIC5813.csv]] || [[file:SIC5813output.csv]] || [[file:SIC5813ZipAndEntropy.csv]] || Drinking establishments map ||

The diversity values are calculated by going through the number of unique food venues in each zip code. As the number of unique food venues in a zip code increases the diversity index, also known as the Shannon index, increases. The normalized entropy values, also known as equitability values, are the diversity values divided by the natural log of the number of food venues in each county. As this ratio approaches a value of one the diversity of food venues in a zip code is maximized at a value of one. How all of these maps were generated are posted in this article. All of the food venue diversity data was calculated using this script and the 2011 business list for the United States. A comparison of food venue equitability in the United States for areas ranked as food deserts by each of the three USDA criteria.  || 445110 || ||  ||  || || 445120 ||  ||  ||  || || 445210 ||  ||  ||  ||
 * Food venue type || North American Industry Classification Systems number (NAICS) || Food venue data (USA 2011) || Diversity data (USA 2011) || Combined data ||
 * Grocery store (Except convenience stores)
 * Convenience store
 * Meat market
 * Seafood market || 445220 || [[file:NAICS445220.csv]] || [[file:NAICS445220output.csv]] || [[file:NAICS445220ZipAndEntropy.csv]] ||
 * Fruit and vegetable market || 445230 || [[file:NAICS445230.csv]] || [[file:NAICS445230output.csv]] || [[file:NAICS445230ZipAndEntropy.csv]] ||
 * Baked goods store || 445291 || [[file:NAICS445291.csv]] || [[file:NAICS445291output.csv]] || [[file:NAICS445291ZipAndEntropy.csv]] ||
 * Confectionary and nut store || 445292 || [[file:NAICS445292.csv]] || [[file:NAICS445292output.csv]] || [[file:NAICS445292ZipAndEntropy.csv]] ||
 * Other specialty foods store || 445299 || [[file:NAICS445299.csv]] || [[file:NAICS445299output.csv]] || [[file:NAICS445299ZipAndEntropy.csv]] ||
 * Beer, wine, and liquor store || 445310 || [[file:NAICS445310.csv]] || [[file:NAICS445310output.csv]] || [[file:NAICS445310ZipAndEntropy.csv]] ||
 * Food service contractors || 722310 || [[file:NAICS722310.csv]] || [[file:NAICS722310output.csv]] || [[file:NAICS722310ZipAndEntropy.csv]] ||
 * Caterers || 722320 || [[file:NAICS722320.csv]] || [[file:NAICS722320output.csv]] || [[file:NAICS722320ZipAndEntropy.csv]] ||
 * Drinking places (Alcoholic beverages) || 722410 || [[file:NAICS722410.csv]] || [[file:NAICS722410output.csv]] || [[file:NAICS722410ZipAndEntropy.csv]] ||
 * Full service restaurant || 722511 || [[file:NAICS722511.csv]] || [[file:NAICS722511output.csv]] || [[file:NAICS722511ZipAndEntropy.csv]] ||