cdlTools (version 0.14)

fips: FIPS code conversion function.

Description

fips converts U.S. state names and abbreviations to and from FIPS codes.

Usage

fips(x, to = "FIPS")

Arguments

x

A vector, data frame or matrix of character strings or numeric FIPS codes. Character input can be the two-letter postal abbreviation, the full name of a state, or a FIPS code in character format. The string is case insensitive. FIPS codes are the only numeric input supported.

to

A character string of output type: "FIPS" will return a numeric fips code. "Abbreviation" will return a two letter state abbreviation. "Name" will return the full state name with spaces. The default output is a numeric FIPS code.

Value

The output type specified by the "to" argument. If no match can be made, the program returns NA.

Details

The Federal Information Processing Standard (FIPS) provides a set of standard numeric codes for refering to U.S. states. This function converts between FIPS codes, state two letter abbreviations, and full state names.

Examples

# NOT RUN {
fips("ia")
fips('northcarolina', to='Abbreviation')
fips('North Carolina')
fips(44,to='Name')
# }