opened on: 25 Aug 2014, 02:50:29 _dta: 1. by Jean Roth , jroth@nber.org , 2012-10-05 2. by Jean Roth , jroth@nber.org , 22 Aug 2014 3. Census 2000 SF1 Summary Level 101 4. Unique identifier is county block 5. Distances between Block that are within .5 miles > miles.dta obs: 248,214,038 vars: 5 22 Aug 2014 20:25 size: 9,432,133,444 (_dta has notes) ------------------------------------------------------------------------------- storage display value variable name type format label variable label ------------------------------------------------------------------------------- county1 str5 %9s FIPS County 1 block1 str10 %10s State FIPS + County FIPS + Tract + Block mi_to_block double %10.0g Distance between blocks that are within .5 miles county2 str5 %9s FIPS County 2 block2 str10 %10s State FIPS + County FIPS + Tract + Block ------------------------------------------------------------------------------- Sorted by: county1 block1 mi_to_block county2 block2