state.info {pscl} | R Documentation |
Numeric codes and names of 50 states and the District of Columbia, required to parse Keith Poole and Howard Rosenthal's collections of U.S. Congressional roll calls.
data(state.info)
icpsr
state
Washington
D.C.
year
NA
, year of statehood
The function readKH
converts the integer ICPSR codes
into strings, via a table lookup in this data frame. Another table
lookup in state.abb
provides the 2-letter abbreviation
commonly used in identifying American legislators, e.g.,
KENNEDY, E (D-MA)
.
Various ICPSR codebooks. http://www.icpsr.umich.edu