methods function

Methods for diallel model fitting

The object returned by the 'lm.diallel()' function is of classes 'lm' and 'diallel'. Specific methods were devised to explore the 'diallel' object.

## S3 method for class 'diallel'
summary(object, MSE, dfr, ...)
## S3 method for class 'diallel'
vcov(object, MSE, ...)
## S3 method for class 'diallel'
anova(object, MSE, dfr, type = 1, ...)
## S3 method for class 'diallel'
model.matrix(object, ...)

Arguments

• object: an object of class diallel.
• MSE: Mean Square Error, when it cannot be derived from model fit
• dfr: Residual degrees of freedom, when they cannot be derived from model fit
• type: It is used to select between Type I (sequential) or Type III (marginal) F tests in ANOVA
• ...: Other optional arguments

Details

To be defined

Returns

vcov.diallel: a variance-covariance matrix summary.diallel: a data.frame of estimated parameters with standard errors anova.diallel: an ANOVA table predict.diallel: a vector of predictions from a diallel model model.matrix.diallel: a design matrix for the fitted diallel model

References

Onofri, A., Terzaroli, N. & Russi, L. Linear models for diallelcrosses: a review with R functions. Theor Appl Genet (2020).https://doi.org/10.1007/s00122-020-03716-8

Examples

library(lmDiallel)
library(multcomp)
# Data with replicates
data("hayman54")

fit <- lm.diallel(Ftime ~ Par1 + Par2, data = hayman54,
                  fct = "HAYMAN1")
summary(fit)
anova(fit)
gh <- glht(linfct = diallel.eff(fit), adjust = "none")