View source: R/specify_lcsm_lavaan_syntax.R
specify_uni_lcsm | R Documentation |
Specify lavaan model for univariate latent change score models
specify_uni_lcsm(timepoints, var, model, add = NULL, change_letter = "g")
timepoints |
Number if timepoints. |
var |
String, specifying letter to be used for of variables (Usually x or y). |
model |
List of model specifications (logical) for the variables specified in
|
add |
String, lavaan syntax to be added to the model |
change_letter |
String, specifying letter to be used for change factor (Usually g or j). |
Lavaan model syntax including comments.
Ghisletta, P., & McArdle, J. J. (2012). Latent Curve Models and Latent Change Score Models Estimated in R. Structural Equation Modeling: A Multidisciplinary Journal, 19(4), 651–682. doi: 10.1080/10705511.2012.713275.
Grimm, K. J., Ram, N., & Estabrook, R. (2017). Growth Modeling—Structural Equation and Multilevel Modeling Approaches. New York: The Guilford Press.
McArdle, J. J. (2009). Latent variable modeling of differences and changes with longitudinal data. Annual Review of Psychology, 60(1), 577–605. doi: 10.1146/annurev.psych.60.110707.163612.
Yves Rosseel (2012). lavaan: An R Package for Structural Equation Modeling. Journal of Statistical Software, 48(2), 1-36. doi: 10.18637/jss.v048.i02.
# Specify univariate LCSM lavaan_uni_lcsm_01 <- specify_uni_lcsm(timepoints = 10, model = list(alpha_constant = TRUE, beta = TRUE, phi = TRUE), var = "x", change_letter = "g") #' # To look at string simply return the object lavaan_uni_lcsm_01 # To get a readable output use cat() function cat(lavaan_uni_lcsm_01)
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