is.curved:
Testing for curved exponential family
Description
These functions test whether an ERGM fit or formula is
curved.
Usage
"is.curved"(object, ...)
"is.curved"(object, response=NULL, basis=NULL, ...)
"is.curved"(object, ...)
"is.curved"(object, ...)
Arguments
object
An ergm object or an ERGM formula.
response, basis
Name of the edge attribute whose value is to be modeled. See ergm.
Value
TRUE if the model fit or one implied by the formula is
curved; FALSE otherwise.
Details
Curvature is checked by testing if all model parameters are canonical.