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MIGSAMP
Migration sample identifier

Description

MIGSAMP identifies persons contained in the 1980 migration/place of work/travel time sub samples. For each of the 1980 samples, the Census Bureau coded the responses for these variables for only half the cases included in the IPUMS, and gave these cases a code of 2 in MIGSAMP. The other half of the cases are coded N/A for the migration/place of work/travel time variables in 1980, and are coded 1 in MIGSAMP.

The subset of cases coded 2 in MIGSAMP accurately represent the proportion of people with a given characteristic for the migration/place of work/travel time variables. However, this sub sample does not represent the absolute number of people in the general population with that characteristic. To get correct absolute numbers, users should select cases with a value of 2 in MIGSAMP and multiply by 2 as well as by PERWT.

The relevant variables for which the Census Bureau coded only half the responses are the following:

Migration Place of Work/Travel Time
 MIGRATE5    PWSTATE2  
 MIGPLAC5    PWMETRO  
 MIGMET5    PWCITY  
 MIGTYPE5    PWTYPE  
 MIGCITY5    PWURBTYP  
 MIGCOGRP    PWSIZE  
 SAMEMET5    PWCNTYGP  
 MIGLMA5    PWMET98  
 MIGCZ5    TRANTIME  
 MIGTYP5E    PWLMA  
 PWCZ    PWMET98E  

Codes and Frequencies



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Comparability

This variable is only available for 1980.

Universe

  • All persons.

Availability

United States
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  • 1980: All samples
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Puerto Rico
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  • 1980: All samples
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Flags

This variable has no flags.

Editing Procedure

There is no editing procedure available for this variable.