Each supported family has a family of R functions, of the form
pY.-, lpY.-, EY.-,
dlpY.deta.-, dlpY.ddispersion.-, lpYc.-, rsm.-, followed by the family's R name,
for the respective family's R name, representing the family's
likelihood, log-likelihood, expectation, derivative of log-likelihood with repect to the linear predictor,
derivative of log-likelihood with respect to the dispersion parameter,
log-normalizing-constant, and random sociomatrix generation functions.
On the C side, similar functions exist, but becuase of static
typing, are also provided for “continuous” versions of those
families. These should not be used on their own, but are used in
estimating MKL positions from the posterior distribution.
Family-link combinations
ID
C name
R name
Type
Family
Link
1
Bernoulli_logit
Bernoulli.logit
Discrete
Bernoulli
logit
2
binomial_logit
binomial.logit
Discrete
binomial
logit
3
Poisson_log
Poisson.log
Discrete
Possion
log
4
Bernoulli_cont_logit
NA
Continuous
Bernoulli
logit
5
binomial_cont_logit
NA
Continuous
binomial
logit
6
Poisson_cont_log
NA
Continuous
Possion
log
7
normal_identity
normal.identity
Continuous
normal
identity
.link can be omited when not ambiguous. Some families
require an appropriate fam.par argument to be supplied to
ergmm:
binomial families
a mandatory trials parameter for the
number of trials (same for every dyad) whose success the response
counts represent
normal
a mandatory prior.var and prior.var.df parameter for the prior scale and degrees of freedom of the variance of
the dyad values