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st: Looking up values in a 2 dimensional table
A colleague of mine has a data file with family income and family
size for a large sample, with real family income for each of a series
of years, in the wide format, e.g., something like:
famid FamSize1985 FamSize1987 FamSize1991 ... Inc1985 inc1987 Inc1991 ...
with family sizes and family incomes recorded for about 20 different
year, not at fixed intervals.
He needs to create a poverty status indicator corresponding to each
year, based on a 2 dimensional table giving poverty thresholds for
each value of year and family size. All the ways I can imagine doing
this seem relatively clumsy. (Among other things, I thought about
ways of doing this with a matrix but they would require using the
value of the family size variable as an index into the matrix, which
is beyond my ken.)
I also considered something involving reshape and merge, but that
seemed awkward as well.
Suggestions?
Regards,
=-=-=-=-=-=-=-=-=-=-=-=-=
Mike Lacy
Fort Collins CO USA
(970) 491-6721 office
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