is_dv_residvar: Identify dependent Variable residual variance

In semptools: Customizing Structural Equation Modelling Plots

Identify dependent Variable residual variance

Description

Check which parameters in a lavaan output are the residual variance of a dependent variable.

Usage

is_dv_residvar(lavaan_out)

Arguments

lavaan_out

A lavaan::lavaan object.

Details

Check which parameters in a lavaan output are the variance of a dependent variable. Indicators of a latent variable will be excluded.

Value

A boolean vector with length equal to the number of rows in the lavaan output.

Examples

mod <-
 'x1 ~~ x2
  x3 ~  x1 + x2
  x4 ~  x1 + x3
 '
fit_pa <- lavaan::sem(mod, pa_example)
is_dv_residvar(fit_pa)

mod <-
 'f1 =~ x01 + x02 + x03
  f2 =~ x04 + x05 + x06 + x07
  f3 =~ x08 + x09 + x10
  f4 =~ x11 + x12 + x13 + x14
 '
fit_cfa <- lavaan::cfa(mod, cfa_example)
is_dv_residvar(fit_cfa)

mod <-
 'f1 =~ x01 + x02 + x03
  f2 =~ x04 + x05 + x06 + x07
  f3 =~ x08 + x09 + x10
  f4 =~ x11 + x12 + x13 + x14
  f3 ~  f1 + f2
  f4 ~  f1 + f3
 '
fit_sem <- lavaan::sem(mod, sem_example)
is_dv_residvar(fit_sem)

semptools documentation built on Oct. 15, 2023, 5:07 p.m.