simsem: findIndResidualVar – R documentation

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findIndResidualVar

Find indicator residual variances from factor loading matrix, total factor covariance, and total indicator variances.

Description

Find indicator (measurement) residual variances from a factor loading matrix, total factor covariance matrix, and total indicator variances.

Usage

findIndResidualVar(lambda, totalFactorCov, totalVarTheta = NULL, 
	kappa = NULL, covcov = NULL)

Arguments

`lambda`	Factor loading matrix
`totalFactorCov`	Total (model-implied) covariance matrix among factors.
`totalVarTheta`	Indicator total variances. As a default, all total variances are 1.
`kappa`	Regression coefficient matrix from covariates (column) to indicators (rows)
`covcov`	A covariance matrix among covariates

Value

A vector of indicator residual variances.

Author(s)

Sunthud Pornprasertmanit (psunthud@gmail.com)

Examples

loading <- matrix(0, 6, 2)
loading[1:3, 1] <- c(0.6, 0.7, 0.8)
loading[4:6, 2] <- c(0.6, 0.7, 0.8)
facCov <- matrix(c(1, 0.5, 0.5, 1), 2, 2)
totalVar <- rep(1, 6)
findIndResidualVar(loading, facCov, totalVar)

simsem

SIMulated Structural Equation Modeling

v0.5-16

GPL (>= 2)

Authors

Sunthud Pornprasertmanit [aut], Patrick Miller [aut], Alexander Schoemann [aut] (<https://orcid.org/0000-0002-8479-8798>), Terrence D. Jorgensen [aut, cre] (<https://orcid.org/0000-0001-5111-6773>), Corbin Quick [ctb]

Initial release

2021-03-28