Volume 59 - Number 2 - Summer 1993

T. Machine-Readable Data Files (MRDF)

References to data of demographic interest that are stored in machine-readable form. All MRDFs coded under this heading are cross-referenced to specific subject categories as appropriate. Articles concerned with the availability of MRDFs are also included.

59:20870 Cantalini, Bruno; Lori, Agostino. SIPAN--an information system on population aging. A data bank for analyzing regional investment in population. [SIPAN--sistema informativo sulla popolazione anziana. Banca dati per l'analisi territoriale dell'invecchiamento della popolazione.] Istituto di Ricerche sulla Popolazione Working Paper, No. 03/92, 1992. 69 pp. Consiglio Nazionale delle Ricerche, Istituto di Ricerche sulla Popolazione [IRP]: Rome, Italy. In Ita. with sum. in Eng; Fre.
"This study describes the objectives and main technical and functional features of the Elderly Population Information System (SIPAN)....Running on an [IBM-AT] compatible personal computer, this is an interactive system which enables even the lay user to carry out documentation and research activities for the analysis of current aging processes in individual countries or geographical areas as well as the various divisions of Italy."
Correspondence: Consiglio Nazionale delle Ricerche, Istituto di Ricerche sulla Popolazione, Viale Beethoven 56, 00144 Rome, Italy. Location: Princeton University Library (SPR).

59:20871 United States. Bureau of the Census (Washington, D.C.). Census of population and housing, 1990: Summary Tape File 1 (Pacific outlying areas) [MRDF]. 1992. Washington, D.C. In Eng.
"Each Summary Tape File (STF 1) for the Pacific Outlying Areas contains 100-percent Stateside equivalent data. Population items include data on age, sex, marital status, ethnicity (race), and household relationship. Population items are cross tabulated by age, sex, and household type [and housing]....Selected aggregates and medians also are provided. Data are presented in 29 population tables (matrices) and 45 housing tables (matrices)." Data are provided for American Samoa, Guam, the Northern Mariana Islands, and Palau. "STF 1 data files for the Pacific Outlying Areas have a record size of 4,836 characters in one segment. The first 300 characters of the segment contain geographic information....Options include 6250 bpi, ASCII or EBCDIC, labeled or unlabeled. The files are also available on tape cartridges (IBM 3480 compatible) for the same price. The minimum charge for a computer tape or tape cartridge order is $175."
Correspondence: U.S. Bureau of the Census, Customer Services, Washington, D.C. 20233. Source: U.S. Bureau of the Census, Data User Services Division, Data Developments, No. XV-35, Jul 1992, revised Sep 1992.

59:20872 United States. Bureau of the Census (Washington, D.C.). Census of population and housing, 1990: Summary Tape File 1B Extract on CD-ROM (name of state) [MRDF]. 1991. Washington, D.C. In Eng.
"Summary Tape File (STF) 1B Extract on CD-ROM contains 100-percent data selected from STF 1B. Population items include total population [of the United States], age (under 18 and over 65), race (White; Black; American Indian, Eskimo, or Aleut; Asian or Pacific Islander), and Hispanic origin. Housing items include number of housing units, tenure, room density, mean contract rent, mean value, and mean number of rooms in housing unit....STF 1B Extract provides selected data for States and their subareas in hierarchical sequence for the lowest level of census geography, census blocks....The data files on the CD-ROM are in dBASE III+ format. Each file is designated STF1BXss.DBF or STF1BZss.DBF where ss is the two-character State abbreviation. No State file will occupy more than one CD-ROM....The cost of each CD-ROM is [U.S.] $150."
For information on the complete file, available only on magnetic tape, see 58:10813.
Correspondence: U.S. Bureau of the Census, Customer Services, Washington, D.C. 20233. Source: U.S. Bureau of the Census, Data User Services Division, Data Developments, XIV-75 (Revised), Jul 1992.

59:20873 United States. Bureau of the Census (Washington, D.C.). Census of population and housing, 1990: Summary Tape File 3 (Pacific outlying areas) [MRDF]. 1992. Washington, D.C. In Eng.
Summary Tape File 3 contains data for American Samoa, Guam, the Northern Mariana Islands, and Palau. The population data include age, citizenship, educational status, employment status, ethnic group, family type, housing, households, income, language, literacy, marital status, and sex distribution. "STF 3 data files for the Pacific Outlying Areas have a record size of 22,500 characters in three segments. The first 300 characters of each segment contain geographic information....Options include 6250 bpi, ASCII or EBCDIC, labeled or unlabeled. The files are also available on tape cartridges (IBM 3480 compatible) for the same price. The minimum charge for a computer tape or tape cartridge order is $175."
For information on Summary Tape File 1, see elsewhere in this issue.
Correspondence: U.S. Bureau of the Census, Customer Services, Washington, D.C. 20233. Source: U.S. Bureau of the Census, Data User Services Division, Data Developments, No. XV-43, Sep 1992.

59:20874 United States. Bureau of the Census (Washington, D.C.). Census of population and housing, 1990: Summary Tape File 3 (Puerto Rico) [MRDF]. 1993. Washington, D.C. In Eng.
"Summary Tape File 3 (STF 3) for Puerto Rico contains sample data weighted to represent the total population. In addition, the file contains 100-percent counts and unweighted sample counts for total persons and total housing units....Population items include: ability to read and write,...fertility,...age,...educational attainment, employment status, family type,...household type and relationship, income in 1989,...marital status,...occupation,...parents' place of birth,...place of birth,...sex,...[and] urban and rural population....STF 3 for Puerto Rico provides data for Puerto Rico and its subareas in hierarchical sequence down to the block group level. This hierarchy is...: State, County, County subdivision, place (or place part), Census tract/block numbering area (BNA), Block group....STF 3 (Puerto Rico) data file has a record size of 18,084 characters divided into three segments of 6,028 characters each. The first 300 characters of each segment contain geographic information....The STF 3 (Puerto Rico) file is available as a single file....Options include 6250 or 1600 bpi, ASCII or EBCDIC, labeled or unlabeled. The file is also available on IBM 3480 compatible tape cartridge...."
For information on Summary Tape File 2, see 58:30827.
Correspondence: U.S. Bureau of the Census, Customer Services, Washington, D.C. 20233. Source: U.S. Bureau of the Census, Data User Services Division, Data Developments, No. XVI-5, Jan 1993.

59:20875 United States. Bureau of the Census (Washington, D.C.). Current Population Survey, June 1991: immigration and emigration survey [MRDF]. 1992. Washington, D.C. In Eng.
"Data are provided on labor force activity [for the United States] for the week prior to the survey. Comprehensive data are available on the employment status, occupation, and industry of persons 15 years old and over. Also shown are personal characteristics such as age, sex, race, marital status, veteran status, household relationship, educational background, and Hispanic origin. The immigration questions were asked of all household members. The purpose of the collection of data on immigration is to improve the quality of estimates of the foreign-born population and to improve the projections of the U.S. population in future years that are necessary for adequate housing, recreation, education facilities, and other services. The emigration screening items were asked to determine if any household member has relatives living abroad....The file is available on one 9 track tape reel or one IBM 3480-compatible tape cartridge (ASCII or EBCDIC, labeled or unlabeled, 6250 bpi)." The file structure is rectangular and the size is 161,938 records with a length of 428 characters.
Correspondence: U.S. Bureau of the Census, Customer Services, Washington, D.C. 20233. Source: U.S. Bureau of the Census, Data User Services Division, Data Developments, No. XVI-11, Feb 1993.

59:20876 United States. Bureau of the Census (Washington, D.C.). Current Population Survey, March 1990-1992 on CD-ROM [MRDF]. 1992. Washington, D.C. In Eng.
"This file, also known as the Annual Demographic File, provides the usual monthly labor force data [for the United States], but in addition, provides supplemental data on work experience, income, noncash benefits, and migration. Comprehensive information is given on the employment status, occupation, and industry of persons 15 years old and over. Additional data for persons 15 years old and older are available concerning weeks worked and hours per week worked, reason not working full time, total income and income components, and residence on March 1 in year of survey....Characteristics such as age, sex, race, household relationship, and Hispanic origin are shown for each person in the household enumerated." The file structure is hierarchical. File size for 1990 is 299,576 records, with a record size of 656 characters; for 1991, 300,012 records, with a record size of 656 characters; and for 1992, 295,884 records, with a record size of 704 characters.
For information on these files on magnetic tape, see 56:40810, 57:40801, and elsewhere in this issue.
Correspondence: U.S. Bureau of the Census, Customer Services, Washington, D.C. 20233. Source: U.S. Bureau of the Census, Data User Services Division, Data Developments, No. XV-66, Dec 1992.

59:20877 United States. Bureau of the Census (Washington, D.C.). Current Population Survey, March 1992 [MRDF]. 1992. Washington, D.C. In Eng.
"This file, also known as the Annual Demographic File, provides the usual monthly labor force data [for the United States], but in addition, provides supplemental data on work experience, income, noncash benefits, and migration. Comprehensive work experience information is given on the employment status, occupation, and industry of persons 15 years old and over. Additional data for persons 15 years old and older are available concerning weeks worked and hours per week worked, reason not working full time, total income and income components, and residence on March 1, 1991....Characteristics such as age, sex, race, household relationship, and Hispanic origin are shown for each person in the household enumerated." The file structure is hierarchical with a size of 295,884 logical records; each record is 704 characters. "The files...are available on 9-track tape reel (ASCII or EBCDIC, labeled or unlabeled, 6250 bpi) or 3480-compatible tape cartridge."
For information on the 1989 file, see 58:30830.
Correspondence: U.S. Bureau of the Census, Customer Services, Washington, D.C. 20233. Source: U.S. Bureau of the Census, Data User Services Division, Data Developments, No. XV-65, Dec 1992.

59:20878 United States. Bureau of the Census (Washington, D.C.). Survey of Income and Program Participation (SIPP) [MRDF]. 1991-1992. Washington, D.C. In Eng.
The Survey of Income and Program Participation (SIPP) is a U.S. longitudinal survey in which each sampled household and each descendent household is reinterviewed at four-month intervals for seven interviews, or waves. The file created from the survey data contains basic demographic and social characteristics statistics for each member of the household. These include age, sex, race, ethnic origin, marital status, household relationship, education, and veteran status. Data are also included on housing and labor force participation. Files released in 1991 and 1992 include the 1984 Panel Wave 7 and 3 combined rectangular microdata file; the 1986 Panel Wave 5 core and topical module microdata research file; the 1988 Panel Wave 1 rectangular core file, Wave 5 core and topical module microdata research file, Wave 6 rectangular core and topical module microdata file, and Full Panel microdata research file; the 1990 Panel Wave 3 rectangular topical module microdata file, Wave 4 topical module microdata file, and Wave 7 core microdata file, as well as the Waves 1-5 longitudinal microdata file; and the 1991 Panel Wave 1, 2, 3, and 4 core microdata files.
For other SIPP files released in 1990, see 58:10815.
Correspondence: U.S. Bureau of the Census, Customer Services, Washington, D.C. 20233. Source: U.S. Bureau of the Census, Data User Services Division, Data Developments, No. XV, 1992.

59:20879 United States. Bureau of the Census (Washington, D.C.). TIGER/Line census files [MRDF]. 1991-1992. Washington, D.C. In Eng.
The following files related to the TIGER database were released in 1992. The TIGER/census tract street index file (version 1) "contains Federal Information Processing Standards (FIPS) [for] State, county, county subdivision, and place codes and the 1990 census tract numbers for each side of the street within the urban cores of the 550 counties....The FIPS county subdivision and place codes are useful to determine the correct census tract number when streets with identical names and ranges exist in different parts of the same county." The file structure consists of a fixed-length record with a length of 106 characters. The TIGER/census tract comparability file covers all census tracts in the United States and Puerto Rico that changed between the 1980 and 1990 censuses. Finally, the Tiger/UA limit files "consist of all of the linear features in the Census Bureau's TIGER data base that were used to form the boundary of the 1990 UA [urban areas]....The tape contains a total of 810 files (405 UAs of two record types each) with a block size of 16,384. The length of Record Type 1 is 228 characters and Record Type 2 is 208 characters. The total record count for all 810 files is 424,452."
For a previous citation of TIGER/Line census files, see 58:10816.
Correspondence: U.S. Bureau of the Census, Customer Services, Washington, D.C. 20233. Source: U.S. Bureau of the Census, Data User Services Division, Data Developments, Nos. XV-18, 20, and 33.


Copyright © 1993-1996, Office of Population Research, Princeton University.