A wrapper to mgcv::gam.vcomp() which returns the smoothing parameters
expressed as variance components.
variance_comp(object, ...)# S3 method for gam
variance_comp(object, rescale = TRUE, coverage = 0.95, ...)
an R object. Currently only models fitted by mgcv::gam() or
mgcv::bam() are supported.
arguments passed to other methods
logical; for numerical stability reasons the penalty matrices
of smooths are rescaled before fitting. If rescale = TRUE, this rescaling
is undone, resulting in variance components that are on their original
scale. This is needed if comparing with other mixed model software, such as
lmer().
numeric; a value between 0 and 1 indicating the (approximate) coverage of the confidence interval that is returned.
This function is a wrapper to mgcv::gam.vcomp() which performs
three additional services
it suppresses the annoying text output that mgcv::gam.vcomp() prints to
the terminal,
returns the variance of each smooth as well as the standard deviation, and
returns the variance components as a tibble.