show_options: Show Major Options in an Output of 'lavaan'

In sfcheung/semhelpinghands: Helper Functions for Structural Equation Modeling

Show Major Options in an Output of 'lavaan'

Description

Display the values of major options in a model fitted by lavaan::lavaan() or its wrappers (e.g., lavaan::sem() or lavaan::cfa()).

Usage

show_options(fit)

## S3 method for class 'show_options'
print(x, ...)

Arguments

fit	An output of lavaan::lavaan() or its wrappers (e.g., lavaan::cfa() and lavaan::sem())
x	The output of show_options().
...	Additional arguments. Ignored.

Details

It extracts the values of major options in the output of lavaan::lavaan() or its wrappers (e.g., lavaan::sem() or lavaan::cfa().

It checks the actual values, not the call used. This is useful for understanding how a prepackaged estimator such as ML, MLM, and MLR set other options. It supports the following options:

• Estimator (estimator)

• Standard error (se)

• Model chi-square test(s) (test)

• Missing data method (missing)

• Information matrix used for computing standard errors (information)

• Information matrix used for computing model chi-square (information)

• Whether the mean structure is included.

Value

A show_options-class object with a print method that formats the output.

Methods (by generic)

• print(show_options): The print method of the output of show_options().

Author(s)

Shu Fai Cheung https://orcid.org/0000-0002-9871-9448

Examples

library(lavaan)

# From the help page of lavaan::cfa().

HS.model <- '
visual  =~ x1 + x2 + x3
textual =~ x4 + x5 + x6
speed   =~ x7 + x8 + x9
'
fit <- cfa(HS.model, data = HolzingerSwineford1939)

tmp <- show_options(fit)
tmp

fit <- cfa(HS.model, data = HolzingerSwineford1939, estimator = "MLR")
show_options(fit)
fit <- cfa(HS.model, data = HolzingerSwineford1939, estimator = "MLM")
show_options(fit)

sfcheung/semhelpinghands documentation built on Nov. 5, 2024, 7:05 p.m.