clover: Nitrogen content of red clover plants

In ClustMC: Cluster-Based Multiple Comparisons

Nitrogen content of red clover plants

Description

Includes the nitrogen content (mg) of 30 red clover plants inoculated with one of four single-strain cultures of Rhizobium trifolii or a composite of five Rhizobium meliloti strains, resulting in six treatments in total.

Usage

clover

Format

A tibble with 30 rows and 2 columns:

treatment

a factor denoting the treatment applied to each plant.

nitrogen

a number denoting the nitrogen content of each plant (milligrams).

Details

Data originally from an experiment by Erdman (1946), conducted in a greenhouse using a completely random design. The current dataset was presented by Steel and Torrie (1980) and later used by Bautista et al. (1997) to illustrate their proposed procedure.

Source

Steel, R., & Torrie, J. (1980). Principles and procedures of statistics: A biometrical approach (2nd ed.). San Francisco: McGraw-Hill. Available at: https://archive.org/details/principlesproce00stee

References

Bautista, M. G., Smith, D. W., & Steiner, R. L. (1997). A Cluster-Based Approach to Means Separation. Journal of Agricultural, Biological, and Environmental Statistics, 2(2), 179-197. \Sexpr[results=rd]{tools:::Rd_expr_doi("doi:10.2307/1400402")}

Erdman, L. W. (1946). Studies to determine if antibiosis occurs among rhizobia. Journal of the American Society of Agronomy, 38, 251-258. \Sexpr[results=rd]{tools:::Rd_expr_doi("doi:10.2134/agronj1946.00021962003800030005x")}

Examples

data(clover)
summary(clover)

ClustMC documentation built on Sept. 11, 2024, 6:13 p.m.