Create new column with the value when specified between a
symbols less then < and more than > in the standard columns. For
example when specified under KJONN as <2>, a new column KJONN is
created with value 2.
This function is applicable for columns "GEO", "AAR", "KJONN", "ALDER", "UTDANN", "LANDSSB", all "TABS" and all "VALS".
See also
Other mutate-column functions:
get_mutate_value()
