Returns the variance-covariance matrix of the parameters from a GLLVM. If the variance-covariance matrix was not calculated after model fitting, this function will have to calculate the variance-covariance matrix, which may be computational intensive for a large number of species and/or sites.
# S3 method for gllvm
vcov(object, ...)an object of class 'gllvm'.
not used.
Calculates the variance-covariance matrix of a GLLVM object using se.gllvm, which may be computational intensive with many parameters.The parameters might have unintuitive names. Fixed-effects coefficients are labeled "b", and are ordered per species as: 1) intercepts 2) fixed-effects slopes. Coefficients of the latent variables are labled "lambda" (linear coefficients) or "lambda2".