A directed dyad-year data frame of Gleditsch-Ward state system members

This is a complete directed dyad-year data frame of Gleditsch-Ward state system members. I offer it here as a shortcut for various other functions.

Usage

gw_ddy

A data frame with 1999558 observations on the following 4 variables.

gwcode1: a numeric vector for the Correlates of War state code for the first state
gwcode2: a numeric vector for the Correlates of War state code for the second state
year: a numeric vector for the year

Data are a quick generation from the create_dyadyears(system="gw") function in this package.