evolqg (version 0.3-4)

CalculateMatrix: Calculate Covariance Matrix from a linear model fitted with lm()

Description

Calculates covariance matrix using the maximum likelihood estimator and the model residuals.

Usage

CalculateMatrix(linear.m)

Value

Estimated covariance matrix.

Arguments

linear.m

Linear model adjusted for original data.

Author

Diogo Melo, Fabio Machado

References

https://github.com/lem-usp/evolqg/wiki/

Examples

data(iris)
old <- options(contrasts=c("contr.sum","contr.poly"))
iris.lm = lm(as.matrix(iris[,1:4])~iris[,5])
cov.matrix <- CalculateMatrix(iris.lm)
options(old)  

#To obtain a corrlation matrix, use:
cor.matrix <- cov2cor(cov.matrix)