This returns a numeric matrix instead of character matrix
# S3 method for nlmixrNlme
VarCorr(x, sigma = NULL, ...)
a fitted model object, usually an object inheriting from
class "lme"
.
an optional numeric value used as a multiplier for the
standard deviations. The default is x$sigma
or 1
depending on class(x)
.
further optional arguments passed to other methods (none for the methods documented here).