Extract the covariance matrix `Omega^-1`: between latent blocks (q x q) for the variance-block models, between variables (p x p) for the mean-block models.
Usage
# S3 method for class 'NormalBlockBase'
sigma(object, ...)Extract the covariance matrix `Omega^-1`: between latent blocks (q x q) for the variance-block models, between variables (p x p) for the mean-block models.
# S3 method for class 'NormalBlockBase'
sigma(object, ...)