Options set via the built-in
options() functions that affect
ergm estimation and options that control the behavior of some terms.
ergm() and similar functions will evaluate the likelihood of the fitted model. Can be overridden for a specific call by passing
eval.loglik argument directly.
ergm.loglik.warn_dyads = TRUE
Whether log-likelihood evaluation should issue a warning when the effective number of dyads that can vary in the sample space is poorly defined, such as if the degree sequence is constrained.
ergm.cluster.retries = 5
ergm's parallel routines implement rudimentary fault-tolerance. This option controls the number of retries for a cluster call before giving up.
ergm.term = list()
The default term options below.
Term options can be set in three places, in the order of precedence from high to low:
As a term argument (not always). For example,
gw.cutoff below can be set in a
gwesp term by
For functions such as
summary that take
ergm formulas but do not take a control list, the named arguments passed in as
summary(nw~gwesp(.5,fix=TRUE), gw.cutoff=60) will evaluate the GWESP statistic with its cutoff set to 60.
As an element in a
term.options= list passed via a control function such as
control.ergm() or, for functions that do not, in a list with that argument name. E.g.,
summary(nw~gwesp(.5,fix=TRUE), term.options=list(gw.cutoff=60)) has the same effect.
As an element in a global option list
The following options are in use by terms in the
A string that can be interpreted as an R package version. If set, the term will attempt to emulate its behavior as it was that version of
ergm. Not all past version behaviors are available.
In geometrically weighted terms (
gwdegree, etc.) the highest number of shared partners, degrees, etc. for which to compute the statistic. This usually defaults to 30.
dgwesp, and similar terms need should use a cache for the dyadwise number of shared partners. This usually improves performance significantly and therefore defaults to
TRUE, but it can be disabled.
Whether to allow and how to handle the user attempting to interact dyad-dependent terms (e.g.,
absdiff("age")*triangles as opposed to
absdiff("age"):nodefactor("sex")). Possible values are
"error" (the default),
"warning", for their respective actions, and
"silent" for simply processing the term.
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