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8.2.57.52 tblish.dataset.presidents ¶

Static Method: out = presidents () ¶

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.

Format ¶

date

Approximate date of the observation.

approval

Approval rating (%).

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 ¶

t = tblish.dataset.presidents;

figure
plot (datenum (t.date), t.approval)
datetick ("x")
xlabel ("Date")
ylabel ("Approval rating (%)")
title ("presidents data")