pub fn discoveries() -> Result<DataFrame, PolarsError>Expand description
§Yearly Numbers of Important Discoveries
§Description:
The numbers of “great” inventions and scientific discoveries in each year from 1860 to 1959.
§Usage:
discoveries
§Format:
A time series of 100 values.
§Source:
The World Almanac and Book of Facts, 1975 Edition, pages 315-318.
§References:
McNeil, D. R. (1977) Interactive Data Analysis. Wiley.
§Examples:
require(graphics)
plot(discoveries, ylab = "Number of important discoveries",
las = 1)
title(main = "discoveries data set")