cSEM: calculateDf – R documentation

Pricing

Become an expert in R — Interactive courses, Cheat Sheets, certificates and more!

Get Started for Free

Documentation

cSEM

calculateDf

Degrees of freedom

Description

Calculate the degrees of freedom for a given model from a cSEMResults object.

Usage

calculateDf(
  .object     = NULL,
  .null_model = FALSE,
  ...
  )

Arguments

`.object`	An R object of class cSEMResults resulting from a call to `csem()`.
`.null_model`	Logical. Should the degrees of freedom for the null model be computed? Defaults to `FALSE`.
`...`	Ignored.

Details

Although, composite-based estimators always retrieve parameters of the postulated models via the estimation of a composite model, the computation of the degrees of freedom depends on the postulated model.

See: cSEM website for details on how the degrees of freedom are calculated.

To compute the degrees of freedom of the null model use .null_model = TRUE. The degrees of freedom of the null model are identical to the number of non-redundant off-diagonal elements of the empirical indicator correlation matrix. This implicitly assumes a null model with model-implied indicator correlation matrix equal to the identity matrix.

Value

A single numeric value.