Return to PSG Models documentation page

PENSIM output file .MIG

--- .MIG file contains aggregate migration/population counts for birth cohort.

The PENSIM runNNNNN.mig file has no heading lines and no summary lines.  
The file contains rows of tab-delimited migration and population counts by
age and scenario for the indicated birth cohort.  The "rectangular" format
of the .mig file makes it suitable for tabulating with an AWK program.

IMPORTANT NOTE: The statistics are raw counts of cohort sample individuals
that have not been weighted by the PENSIM:RUN.sample_pct value.

FORMAT OF EACH SCENARIO- AND AGE-SPECIFIC AGGREGATE COHORT COUNT RECORD:
(1) cohort birth year
(2) scenario number
(3) cohort age
(4) resident population count (unweighted)
(5) gross immigration count (unweighted)
(6) emigration count (unweighted)
(7) net immigration count (unweighted) [by definition: (7)=(5)-(6)]