tmx_is.identified: Test if a factor model is identified

In tbates/umx: Structural Equation Modeling and Twin Modeling in R

Test if a factor model is identified

Description

Test if a factor model is identified by establishing if the number of variables is equal too or grater than the number of model parameters. See also OpenMx::mxCheckIdentification() for checking actual models.

Usage

tmx_is.identified(nVariables, nFactors)

Arguments

nVariables	the number of variables measured.
nFactors	the number of factors posited.

Value

• Binary

References

• https://github.com/tbates/umx, https://tbates.github.io

See Also

• OpenMx::mxCheckIdentification()

Other Teaching and testing Functions: tmx_genotypic_effect(), umx

Examples

tmx_is.identified(nVariables = 2, nFactors = 1) # FALSE
tmx_is.identified(nVariables = 3, nFactors = 1) # TRUE
tmx_is.identified(nVariables = 4, nFactors = 2) # FALSE
tmx_is.identified(nVariables = 5, nFactors = 2) # TRUE

tbates/umx documentation built on Dec. 14, 2024, 11:28 a.m.