Return coefficients for an mplus.model object

This is a method for returning the coefficients of an mplus.model object. It works directly on an object stored from readModels such as: object <- readModels("/path/to/model/model.out").

Method that calls coef.mplus.model. See further documentation there.

# S3 method for mplus.model
coef(
  object,
  type = c("un", "std", "stdy", "stdyx"),
  params = c("regression", "loading", "undirected", "expectation", "variability",
    "new"),
  ...,
  raw = FALSE
)

# S3 method for mplusObject
coef(object, ...)

Arguments

object	An object of class mplusObject
type	A character vector indicating the type of coefficients to return. One of “un”, “std”, “stdy”, or “stdyx”.
params	A character vector indicating what type of parameters to extract. Any combination of “regression”, “loading”, “undirected”, “expectation”, “variability”, and “new”. A single one can be passed or multiple. By default, all are used and all parameters are returned.
...	Additional arguments to pass on (not currently used)
raw	A logical defaulting to FALSE indicating whether to parse and return coefficients based on the type (regression, etc.) and relabel using an arrow notation, or to return the raw coefficients in a named vector.

Value

Either a data frame of class ‘mplus.model.coefs’, or in the case of multiple group models, a list of class ‘mplus.model.coefs’, where each element of the list is a data frame of class ‘mplus.model.coefs’, or a named vector of coefficients, if raw=TRUE.

See also

readModels

Other Mplus-Formatting: confint.mplus.model(), extract(), print.MplusRstructure(), summary.mplusObject()

Author

Joshua F. Wiley <jwiley.psych@gmail.com>

Examples

if (FALSE) {
# simple example of a model using builtin data
# demonstrates use
test <- mplusObject(
  TITLE = "test the MplusAutomation Package;",
  MODEL = "
    mpg ON wt hp;
    wt WITH hp;",
  OUTPUT = "STANDARDIZED;",
  usevariables = c("mpg", "wt", "hp"),
  rdata = mtcars)

res <- mplusModeler(test, "mtcars.dat", modelout = "model1.inp", run = 1L)

# example of the coef method on an mplud.model object
# note that res$results holds the results of readModels()
coef(res$results)
coef(res$results, type = "std")
coef(res$results, type = "stdy")
coef(res$results, type = "stdyx")

# there is also a method for mplusObject class
coef(res)

# remove files
unlink("mtcars.dat")
unlink("model1.inp")
unlink("model1.out")
unlink("Mplus Run Models.log")
}