dominance: Returns highest of mother and father codes
In pdparker/isco88conversion: Converts ISCO-88 Codes to EGP, ISEI, or SIOPS codes

Description Usage Arguments Value Examples

Uses the dominance pespective to provide highest of mother and father ses or social class. This will return the MAX for prestige codes and MIN for EGP codes.

1	dominance(x, type)

`x`	A int vector of length 2
`type`	Either 'EGP', 'ISEI', or 'SIOPS'

Returns highest

#Returns 79
dominance(c(56,79), type = "ISEI")
# Returns 56
dominance(c(56,NA), type = "SIOPS")
# Returns NA
dominance(c(NA,NA), type = "SIOPS")
#Returns 1
dominance(c(1,2), type = "EGP")