ecovalence function

Stability analysis based on Wricke's model

The function computes the ecovalence (Wricke, 1965) for stability analysis.

ecovalence(.data, env, gen, rep, 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.
• rep: The name of the column that contains the levels of the replications/blocks.
• 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.

Returns

An object of class ecovalence containing the results for each variable used in the argument resp.

Examples

library(metan)
out <- ecovalence(data_ge2,
                 env = ENV,
                 gen = GEN,
                 rep = REP,
                 resp = PH)

References

Wricke, G. 1965. Zur berechnung der okovalenz bei sommerweizen und hafer. Z. Pflanzenzuchtg 52:127-138.

Author(s)

Tiago Olivoto tiagoolivoto@gmail.com