Creates an inverse of table 1 in a translation table; that is,
it creates table 2.
INVERSE does not preserve multiple translations. Suppose table
1 has two (or more) different characters translated to the same value; for
example, "A" and "B" are both translated to "1". For table 2, INVERSE uses
the last translated character for the value; that is, "1" is always translated
to "B" and not "A", assuming that "A" appears before "B" in the first table.
Sort programs in SAS require an inverse table for proper operation.
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