isco08_to_isco08_1() -- Translate 4-digit ISCO-08 to 1-digit ISCO-08

Syntax

isco08_to_isco08_1(varname)

where varname contains 4-digit ISCO-08 codes.

Description

crosswalk table translating 4-digit ISCO-08 codes (unit groups)
to 1-digit ISCO-08 codes (major groups).

Source

isco08_to_isco08_1() is implemented as a wrapper for
isco08_to_isco08_3() followed by
isco08_3_to_isco08_2() followed by
isco08_2_to_isco08_1().

.isco08_to_isco08_3
.isco08_3_to_isco08_2
.isco08_2_to_isco08_1