pub fn us_pop() -> Result<DataFrame, PolarsError>Expand description
§Populations Recorded by the US Census
§Description:
This data set gives the population of the United States (in millions) as recorded by the decennial census for the period 1790-1970.
§Usage:
uspop
§Format:
A time series of 19 values.
§Source:
McNeil, D. R. (1977) Interactive Data Analysis. New York: Wiley.
§Examples:
require(graphics)
plot(uspop, log = "y", main = "uspop data", xlab = "Year",
ylab = "U.S. Population (millions)")