Darwin: Charles Darwin's study of cross-fertilized and...
In BSDA: Basic Statistics and Data Analysis

Darwin

R Documentation

Charles Darwin's study of cross-fertilized and self-fertilized plants

Description

Data for Exercise 7.62

Usage

Darwin

Format

A data frame/tibble with 15 observations on three variables

pot: number of pot
cross: height of plant (in inches) after a fixed period of time when cross-fertilized
self: height of plant (in inches) after a fixed period of time when self-fertilized

Source

Darwin, C. (1876) The Effect of Cross- and Self-Fertilization in the Vegetable Kingdom, 2nd edition, London.

References

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

Examples


differ <- Darwin$cross - Darwin$self
qqnorm(differ)
qqline(differ)
shapiro.test(differ)
wilcox.test(Darwin$cross, Darwin$self, paired = TRUE)
rm(differ)

BSDA documentation built on Sept. 19, 2023, 1:08 a.m.