On this Picostat.com statistics page, you will find information about the mignonette data set which pertains to Darwin's Wild Mignonette Data. The mignonette data set is found in the DAAG R package. You can load the mignonette data set in R by issuing the following command at the console data("mignonette"). This will load the data into a variable called mignonette. If R says the mignonette data set is not found, you can try installing the package by issuing this command install.packages("DAAG") and then attempt to reload the data. If you need to download R, you can go to the R project website. You can download a CSV (comma separated values) version of the mignonette R data set. The size of this file is about 277 bytes.

Darwin's Wild Mignonette Data

Description

Data which compare the heights of crossed plants with self-fertilized plants. Plants were paired within the pots in which they were grown, with one on one side and one on the other.

Usage

mignonette

Format

This data frame contains the following columns:

cross

heights of the crossed plants

self

heights of the self-fertilized plants

Source

Darwin, Charles. 1877. The Effects of Cross and Self Fertilisation in the Vegetable Kingdom. Appleton and Company, New York.

Examples

print("Is Pairing Helpful? - Example 4.3.1")attach(mignonette)
plot(cross ~ self, pch=rep(c(4,1), c(3,12))); abline(0,1) 
abline(mean(cross-self), 1, lty=2)
detach(mignonette)

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Dataset imported from https://www.r-project.org.