_dta: 1. by Jean Roth , jroth@nber.org , 2013-10-28 2. Census 2000 SF1 .do and .dct files are by Jean Roth , jroth@nber.org , 2012-11-08 3. Census 2000 SF1 notes are by Jean Roth , jroth@nber.org , 2012-11-08 4. by Jean Roth , jroth@nber.org , 22 Feb 2014 5. Census 2010 SF1 Summary Level 860 6. Distances between ZCTA5s that are within 500 miles zip1: 1. ZIP Code Tabulation Area (5-digit)7, 12 ZCTA5 5 172 A/N zip2: 1. ZIP Code Tabulation Area (5-digit)7, 12 ZCTA5 5 172 A/N obs: 507,778,234 vars: 3 22 Feb 2014 01:19 size: 9,140,008,212 (_dta has notes) ------------------------------------------------------------------------------------------------------------------------------------------------------- storage display value variable name type format label variable label ------------------------------------------------------------------------------------------------------------------------------------------------------- zip1 str5 %9s * ZIP Code Tabulation Area (5-digit)7, 12 zip2 str5 %9s * ZIP Code Tabulation Area (5-digit)7, 12 mi_to_zcta5 double %10.0g * indicated variables have notes ------------------------------------------------------------------------------------------------------------------------------------------------------- Sorted by: zip1 mi_to_zcta5 zip2