Faithful: Waiting times between successive eruptions of the Old...

Description Usage Format Source References Examples

Description

Data for Exercise 5.12 and 5.111

Usage

1

Format

A data frame/tibble with 299 observations on two variables

time

a numeric vector

eruption

a factor with levels 1 and 2

Source

A. Azzalini and A. Bowman, "A Look at Some Data on the Old Faithful Geyser," Journal of the Royal Statistical Society, Series C, 39 (1990), 357-366.

References

Kitchens, L. J. (2003) Basic Statistics and Data Analysis. Pacific Grove, CA: Brooks/Cole, a division of Thomson Learning.

Examples

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t.test(time ~ eruption, data = Faithful)
hist(Faithful$time, xlab = "wait time", main = "", freq = FALSE)
lines(density(Faithful$time))

## Not run: 
library(ggplot2)
ggplot2::ggplot(data = Faithful, aes(x = time, y = ..density..)) + 
           geom_histogram(binwidth = 5, fill = "pink", col = "black") + 
           geom_density() + 
           theme_bw() + 
           labs(x = "wait time")

## End(Not run)

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