stability.env_var {agrostab}

R Documentation

Environmental variance

Description

This function calculates the Roemer's environmental variance.

Usage

stability.env_var(dataf, res_var, gen_var, env_var, rep_var,
  plotIt = TRUE)

Arguments

dataf	the name of the data frame containing the data to analyze.
res_var	the response variable.
gen_var	the genotypes variable.
env_var	the environments variable.
rep_var	the replications variable.
plotIt	a logical value specifying if plot should be drawn; default is TRUE

Value

A numeric vector with environmental variances of genotypes.

References

Becker, H.C. and J. Leon. 1988. Stability analysis in plant breeding. Plant Breeding 101: 1-23.

Examples

data(exp_data)
stability.env_var(exp_data,"yield","gen","env","rep")

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