The unionmodel will add all parameters to all groups that are free in at least one group, and the intersectionmodel will constrain all parameters across groups to zero unless they are free to estimate in all groups.
unionmodel(x, runmodel = FALSE, verbose, log = TRUE, identify =
TRUE, matrices, ...)intersectionmodel(x, runmodel = FALSE, verbose, log = TRUE, identify =
TRUE, matrices, ...)
An object of the class psychonetrics (psychonetrics-class)
A psychonetrics model.
Logical, should the model be updated?
Logical, should messages be printed?
Logical, should the log be updated?
Logical, should the model be identified?
Which matrices should be used to form the union/intersection model?
Arguments sent to runmodel
Sacha Epskamp