state_panel: Create a Panel of State-Years from the Correlates of War or...

In isard: Overflow Data for Quantitative Peace Science Research

Create a Panel of State-Years from the Correlates of War or Gleditsch-Ward system.

Description

state_panel() is a function to create a panel of state-years from one of two major state systems in international relations scholarship.

Usage

state_panel(system = "cow", mry = TRUE)

Arguments

system	a state system (either "cow" or "gw")
mry	logical, defaults to TRUE. If TRUE, the panel created extends to the most recently concluded calendar year. If FALSE, the panel created ends at the year of last update. See details section for more.

Details

This function leans on cw_system and gw_system in this package.

The Correlates of War system's last year is 2016. The Gleditsch-Ward system's last year is 2020. This information matters for the mry argument in the function.

Value

state_panel() returns a data frame of state years corresponding with either the Correlates of War or the Gleditsch-Ward system.

Examples

head(state_panel(), 10)
head(state_panel(system='gw'), 10)

isard documentation built on April 11, 2025, 6:19 p.m.