On this R-data statistics page, you will find information about the darwin data set which pertains to Darwin's Plant Height Differences . The darwin data set is found in the boot R package. You can load the darwin data set in R by issuing the following command at the console data("darwin"). This will load the data into a variable called darwin. If R says the darwin data set is not found, you can try installing the package by issuing this command install.packages("boot") 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 darwin R data set. The size of this file is about 49 bytes.
Darwin's Plant Height Differences
darwin data frame has 15 rows and 1 columns.
Charles Darwin conducted an experiment to examine the superiority of cross-fertilized plants over self-fertilized plants. 15 pairs of plants were used. Each pair consisted of one cross-fertilized plant and one self-fertilized plant which germinated at the same time and grew in the same pot. The plants were measured at a fixed time after planting and the difference in heights between the cross- and self-fertilized plants are recorded in eighths of an inch.
This data frame contains the following column:
The difference in heights for the pairs of plants (in units of 0.125 inches).
The data were obtained from
Fisher, R.A. (1935) Design of Experiments. Oliver and Boyd.
Darwin, C. (1876) The Effects of Cross- and Self-fertilisation in the Vegetable Kingdom. John Murray.
Davison, A.C. and Hinkley, D.V. (1997) Bootstrap Methods and Their Application. Cambridge University Press.
Dataset imported from https://www.r-project.org.