presidents             package:datasets             R Documentation

Quarterly Approval Ratings of US Presidents

Description:

     The (approximately) quarterly approval rating for the President of
     the United states from the first quarter of 1945 to the last
     quarter of 1974.

Usage:

     presidents

Format:

     A time series of 120 values.

Details:

     The data are actually a fudged version of the approval ratings. 
     See McNeil's book for details.

Source:

     The Gallup Organisation.

References:

     McNeil, D. R. (1977) _Interactive Data Analysis_. New York: Wiley.

Examples:

     require(stats); require(graphics)
     plot(presidents, las = 1, ylab = "Approval rating (%)",
          main = "presidents data")

