Data for Chinese wars example, see page 163
The variables included in the dataset are:
ONSET ratio-level variable measuring the epochal (whether historical or calendar) time of event occurrence, measured in calendar year
TERM ratio-level variable measuring the epochal (historical) time of event conclusion, measured in calendar year
EXTENT number of belligerents involved on all sides of the war
ETHNIC intra-group or inter-group conflict
DIVERSE number of ethnic groups participating as belligerents
ALLIANCE total number of alliances among belligerents
DYADS number of alliance pairs
POL.LEV nominal-level variable measuring the political level of belligerent involvement regarding domestic and foreign belligerents, with a 1 for internal war, 2 for interstate war
COMPLEX governmental level of the warring parties, where the first variable is multiplied by ten for scale purposes
POLAR number of relatively major or great powers at the time of onset
BALANCE the difference in military capabilities: minor-minor, minor-major, major-major
TEMPOR type of war: protracted rivalry, integrative conquest, disintegrative/fracturing conflict, sporadic event
SCOPE political scope of conflicts in terms of governmental units affected
DURATION duration of conflict, measured in years
data(wars)a data frame of 104 observations of different China wars with 15 explanatory variables