Computes real parameters from link values
convert.link.to.real(x, model = NULL, links = NULL, fixed = NULL)
vector of real parameter values
Link values to be converted to real parameters
model object
vector of character strings specifying links to use in computation of reals
vector of fixed values for real parameters that are needed for calculation of reals from mlogits when some are fixed
Jeff Laake
Computation of the real parameter from the link value is relatively
straightforward for most links and the function inverse.link
is used. The only exception is parameters that use the mlogit
link
which requires the transformation across sets of parameters. This is a
convenience function that does the necessary work to convert from link to
real for any set of parameters. The appropriate links are obtained from
model$links
unless the argument links
is specified and they
will over-ride those in model
.
inverse.link
,compute_real