R: information about the American states needed for U.S....

state.info {pscl} | R Documentation

## information about the American states needed for U.S. Congress

### Description

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.

### Usage

    data(state.info)

### Format

`icpsr`

  integer, numeric code for state used by the Inter-university Consortium for Political and Social Research

`state`

  character, name of state or `Washington D.C.`

`year`

  numeric or `NA`, year of statehood

### Details

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)`.

### Source

Various ICPSR codebooks. http://www.icpsr.umich.edu

### See Also

`state`

[Package pscl version 1.5.2 Index]