Fox: Fox's stability function

In metan: Multi Environment Trials Analysis

Fox's stability function

Description

Performs a stability analysis based on the criteria of Fox et al. (1990), using the statistical "TOP third" only. A stratified ranking of the genotypes at each environment is done. The proportion of locations at which the genotype occurred in the top third are expressed in the output.

Usage

Fox(.data, env, gen, resp, verbose = TRUE)

Arguments

.data	The dataset containing the columns related to Environments, Genotypes, replication/block and response variable(s).
env	The name of the column that contains the levels of the environments.
gen	The name of the column that contains the levels of the genotypes.
resp	The response variable(s). To analyze multiple variables in a single procedure use, for example, resp = c(var1, var2, var3).
verbose	Logical argument. If verbose = FALSE the code will run silently.

Value

An object of class Fox, which is a list containing the results for each variable used in the argument resp. For each variable, a tibble with the following columns is returned.

• GEN the genotype's code.

• mean the mean for the response variable.

• TOP The proportion of locations at which the

Author(s)

Tiago Olivoto [e-mail]

References

Fox, P.N., B. Skovmand, B.K. Thompson, H.J. Braun, and R. Cormier. 1990. Yield and adaptation of hexaploid spring triticale. Euphytica 47:57-64. doi: 10.1007/BF00040364.

Examples

library(metan)
out <- Fox(data_ge2, ENV, GEN, PH)
print(out)

metan documentation built on March 7, 2023, 5:34 p.m.