as.rlebdm.ergm_conlist: Extract dyad-level ERGM constraint information into an...

In ergm: Fit, Simulate and Diagnose Exponential-Family Models for Networks

Extract dyad-level ERGM constraint information into an rlebdm object

Description

A function to combine the free_dyads attributes of the constraints appropriately to generate an rlebdm of dyads toggleable and/or missing and/or informative under that combination of constraints.

Usage

## S3 method for class 'ergm_conlist'
as.rlebdm(
  x,
  constraints.obs = NULL,
  which = c("free", "missing", "informative"),
  ...
)

Arguments

x	an ergm_conlist object: a list of initialised constraints. NULL is treated as a placeholder for no constraint (i.e., a constant matrix of TRUE).
constraints.obs	an ergm_conlist object specifying the observation process constraints; defaults to NULL for all dyads observed (i.e., a constant matrix of FALSE).
which	which aspect of the constraint to extract: free for dyads that may be toggled under the constraints x; ignores constraints.obs; missing for dyads that are free but considered unobserved under the constraints; and informative for dyads that are both free and observed.
...	additional arguments, currently unused.

Note

For which=="free" or "informative", NULL return value is a placeholder for a matrix of TRUE, whereas for which=="missing" it is a placeholder for a matrix of FALSE.

Each element in the constraint list has a sign, which determins whether the constraint further restricts (for +) or potentially relaxes restriction (for -).

See Also

ergmConstraint

ergm documentation built on Aug. 27, 2025, 9:08 a.m.