compute.link: Compute estimates of link values
Description
Computes link values (design*beta) for real parameters, and var-cov from
design matrix (design) and coefficients (beta)Usage
compute.link(model, beta = NULL, design = NULL, data = NULL,
parm.indices = NULL, vcv = TRUE)
Arguments
beta
Estimates of beta parameters
design
numeric design matrix for MARK model with any covariate values
filled in
data
dataframe with covariate values that are averaged for estimates
parm.indices
index numbers from PIMS for rows in design matrix to use
vcv
logical; if TRUE, returns v-c matrix of link values
Value
- estimates: If
vcv=TRUE, a list is returned with elements
vcv.link and the dataframe estimates. If vcv=FALSE,
only the estimates dataframe is returned which has the same structure as in
get.real.
Details
This function is very similar to compute.real except that it
provides estimates of link values before they are transformed to real
estimates using the inverse-link. It is called by get.link to
make calculations but can be called separately. The value is always a
dataframe for the estimates and design data and optionally a
variance-covariance matrix. See get.real for further details
about the arguments.