readme.pop

Data Group Name:  pop

Description:
        State and U.S. population by gender, race, and age:
        1970-1992.

Data Source(s):
        US Census: Intercensal Estimates of the Population of Counties
        by Age, Sex and Race, 1970-1980, 1980-1989, and 1990-1992.

Comments:
   The 1980 population counts were taken from the 1980-89 Intercensial
   Estimates file.
   The intercensial estimates are given at the county level.  These data
   have been aggregated to the state and national levels.
   A reduced version of these data was made which has just the state and US
   populations by year, i.e., without the gender, race, and age breakdowns.
   See the series "popst" for more information.

Usage:  To look up values of these data for a set of key variable values
        (in SAS):

        a) In your SAS program, before your data step add:

           %include 'pop.fmt';

        b) set SUPERKEY to the combination of key variable values you
           want to look up.  See "SUPERKEY=" under key variable
           description below.

        c) use a formatted put function of SUPERKEY with the data series
           format (See examples under "Usage" in detailed description of
           each data series).

Key vars:  Varname    Typ    Description
           YEAR       Num    Year
                             Min=1970   Max=1992
           STATE      Num    FIPS State code (99=US)
                             Min=1   Max=99
           GENDER     Num    Gender (1=male, 2=female, 9=both)
                             Min=1   Max=9
           RACE       Num    Race (1=white, 2=black, 3=other, 9=all)
                             Min=1   Max=9
           AGE5Y      Num    Age in 5-yr bands (0=0-4, ... 75=75+)
                             Min=0   Max=99

          SAS code to make SUPERKEY:

           SUPERKEY =(1000000*YEAR) + (10000*STATE) + (1000*GENDER) +
                      (100*RACE) + AGE5Y;

Data series [summary]:
        Varname  Fmtname   Typ    Description
        -------  -------   ---    -----------
        POP      POP.      Num    Population

---------------------------- Data series POP     ----------------------------
    Varname  Fmtname   Typ    Description
    POP      POP.      Num    Population
                              Units=number of people
                              Min=0   Max=255077569   Mean=345631.725
                              N=243984   N_Missing=0

    How missings handled:
    Comments:
    Usage: myvar=put(superkey,POP.);

------------------------------------------------------------------------------

he SAS System                                                                                13:20 Wednesday, February 24, 1999   1

CONTENTS PROCEDURE

Data Set Name: POP                                      Observations:         243984
Member Type:   DATA                                     Variables:            6
Engine:        V612                                     Indexes:              0
Created:       12:23 Monday, November 11, 1996          Observation Length:   23
Last Modified: 12:25 Monday, November 11, 1996          Deleted Observations: 0
Protection:                                             Compressed:           YES
Data Set Type:                                          Reuse Space:          NO
                                                        Sorted:               YES
Label:

File Size (bytes):        8208384

             -----Alphabetic List of Variables and Attributes-----

#    Variable    Type    Len    Pos    Label
------------------------------------------------------------------------------
6    AGE5Y       Num       3     20    Age in 5-yr bands (0=0-4, ... 75=75+)
2    GENDER      Num       3      3    Gender (1=male, 2=female, 9=both)
4    POP         Num       8      9    Population
3    RACE        Num       3      6    Race (1=white, 2=black, 3=other, 9=all)
1    STATE       Num       3      0    FIPS State code (99=US)
5    YEAR        Num       3     17    Year

        -----Sort Information-----

Sortedby:      YEAR STATE GENDER RACE AGE5Y
Validated:     YES
Character Set: ASCII