This is a complete directed dyad-year data frame of Correlates of War state system members. I offer it here as a shortcut for various other functions.
cow_ddy
A data frame with 2025840 observations on the following 4 variables.
ccode1
a numeric vector for the Correlates of War state code for the first state
ccode2
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()
function in this package.