README file 1970 Census of Poplation and Housing: Summary Statistics File 4A - Housing (Fourth Count) Author: U.S. Dept. of Commerce, Bureau of the Census ICPSR Study Number: 8126 EDS Study Number: A1 1970-4AH in data subdirectory: bytes stf4a-70h-ny-new.dat 229,853,771 reformated file 22,322 records*** record type 1 has 3,932 records record type 2 has 3,932 records record type 3 has 3,895 records record type 4 has 3,895 records record type 5 has 3,897 records record type 6 has 2,771 records stf4a-70h-ny-new.dta 45,892,294 Stata dataset** stf4a-70h-ny-new.sav 37,211,804 Spss dataset stf4a-70h-ny.dat.gz 15,681,549 original file from ICPSR * 229,856,578 unzipped 136,738 physical records 22,322 logical records * Note: Records came broken into parts: record parts 1 7 2 6 3 7 (record type 7) 4 5 (record type 8) 5 5 (record type 9) 6 7 (record type 10) actualy record number is in column 118-199 of record type 1 in original data. ** Created from Spss dataset with stat-transfer, optimized. Stata/SE format. *** NOTE: case number added in columns 1-5. in doc subdirectory: how-to-preprocess.ascii The raw data from ICPSR needs pre-processing. Here's what to do. stf4a-70h-datalist.cbk Spss Display Dictionary Ouput stf4a-70h-dd.cbk Data Layout for stf4a-p-ny-new.dat stf4a-70h-p.pdf Documentation in PDF format (EDS has a better version on paper) in program subdirectory: join.pl Program to join physical records into continuous logical records. They came broken into stf4a-70h.sps Spss program to read all data