The data set election has the results of the first three US presidential races of the 2000's (2000, 2004, 2008). The observations are the 50 states plus the District of Columbia, and the values are the (D - R)/(D + R) for each state and each year, where D is the number of votes the Democrat received, and R is the number the Republican received.
electionA double matrix with 51 observations on the following 3 variables.
Results for 51 States in Year 2000
Results for 51 States in Year 2004
Results for 51 States in Year 2008
Calculated by Prof. John Marden, data source to be announced.