This method for bread returns the variance-covariance
matrix (bread) for a fitted glmmTMB model.
# S3 method for class 'glmmTMB'
bread(x, full = FALSE, rawnames = FALSE, ...)a fitted glmmTMB object.
return a full variance-covariance matrix?
logical; if TRUE, return the raw names of the parameters as in the TMB object.
By default, FALSE such that the names are sanitized to user friendly names.
ignored additional arguments (only for methods compatibility).
The bread matrix, which is just the variance-covariance matrix.
m <- glmmTMB(count ~ mined + (1 | spp), data = Salamanders, family = nbinom1)
bread(m)
#> (Intercept) minedno
#> (Intercept) 0.07473625 -0.02159957
#> minedno -0.02159957 0.02439405
bread(m, full = TRUE)
#> (Intercept) minedno disp~(Intercept) theta_1|spp.1
#> (Intercept) 0.074736247 -0.0215995725 0.007442906 -0.0053396522
#> minedno -0.021599573 0.0243940499 -0.003287995 0.0007609193
#> disp~(Intercept) 0.007442906 -0.0032879946 0.018259553 -0.0021647850
#> theta_1|spp.1 -0.005339652 0.0007609193 -0.002164785 0.0902780102