scriptBiDy: A Function That Writes, Saves, and Exports Syntax for Fitting...

In jsakaluk/dySEM: Dyadic Structural Equation Modeling

A Function That Writes, Saves, and Exports Syntax for Fitting Bifactor Dyadic (BiDy) models

Description

This function takes the outputted object from scrapeVarCross() and automatically writes, returns, and exports (.txt) lavaan() syntax for specifying dyadic configural, loading, and intercept invariant BiDy CFA (BiDy-C) or SEM (BiDy-S) Model. Currently only uses fixed-factor scale-setting

Usage

scriptBiDy(
  dvn,
  type = "CFA",
  lvxname,
  lvyname,
  constr_dy_x_meas = c("loadings", "intercepts", "residuals"),
  constr_dy_x_struct = c("variances", "means"),
  constr_dy_y_meas = c("loadings", "intercepts", "residuals"),
  constr_dy_y_struct = c("variances", "means"),
  constr_dy_xy_struct = c("actors"),
  model = lifecycle::deprecated(),
  equate = lifecycle::deprecated(),
  writeTo = NULL,
  fileName = NULL
)

Arguments

dvn	input dvn list from scrapeVarCross
type	input character to specify whether to script a BiDy-CFA ("CFA", default) or BiDy-SEM ("SEM") model
lvxname	input character to (arbitrarily) name LV X in lavaan syntax
lvyname	input character to (arbitrarily) name LV Y in lavaan syntax
constr_dy_x_meas	input character vector detailing which measurement model parameters to constrain across dyad members for latent X. Default is c("loadings", "intercepts", "residuals"), but user can specify any combination of "loadings", "intercepts", and "residuals", #or "none" to specify an otherwise unconstrained dyadic configural invariance model. Users may also specify more boutique patterns of bifactor loading constraints with "loadings_source" or "loadings_mutual".
constr_dy_x_struct	input character vector detailing which structural model parameters to constrain across dyad members for latent X. Default is c("variances", "means"), but user can specify any combination of "variances" and "means", or "none".
constr_dy_y_meas	input character vector detailing which measurement model parameters to constrain across dyad members for latent X. Default is c("loadings", "intercepts", "residuals"), but user can specify any combination of "loadings", "intercepts", and "residuals", #or "none" to specify an otherwise unconstrained dyadic configural invariance model. Users may also specify more boutique patterns of bifactor loading constraints with "loadings_source" or "loadings_mutual".
constr_dy_y_struct	input character vector detailing which structural model parameters to constrain across dyad members for latent X. Default is c("variances", "means"), but user can specify any combination of "variances" and "means", or "none".
constr_dy_xy_struct	input character vector detailing which structural model parameters to constrain for modeling the predictive association(s) between partners' latent x and y. Default is c("actors"), but users can also specify "dyadic_zero" or "none".
model	Deprecated input character used to specify which level of invariance is modeled. Users should rely upon constr_dy_x_meas/constr_dy_y_meas and constr_dy_x_struct/constr_dy_y_struct instead, for making constraints to the measurement and/or structural portions of the model for latent x and y.
equate	Deprecated input character to specify which type of structural parameters are constrained to equivalency between partners. Users should rely upon constr_dy_xy_struct for making constraints to the structural portion of the model for associative relationship between latent x and y.
writeTo	A character string specifying a directory path to where a .txt file of the resulting lavaan script should be written. If set to “.”, the .txt file will be written to the current working directory. The default is NULL, and examples use a temporary directory created by tempdir().
fileName	A character string specifying a desired base name for the .txt output file. The default is NULL. The specified name will be automatically appended with the .txt file extension. If a file with the same name already exists in the user's chosen directory, it will be overwritten.

Value

character object of lavaan script that can be passed immediately to lavaan functions

See Also

Other script-writing functions: scriptAPIM(), scriptCFA(), scriptCFM(), scriptINULL(), scriptISAT(), scriptMIM()

Examples

dvn <- scrapeVarCross(DRES, x_order = "sip", x_stem = "sexsat",
x_delim2=".", distinguish_1="1", distinguish_2="2")

sexsat.bidyc.script <- scriptBiDy(dvn, lvxname = "SexSat", type = "CFA",
writeTo = tempdir(),
fileName = "BiDy_C")

dvn <- scrapeVarCross(dat = commitmentQ, x_order = "spi", x_stem = "sat.g", x_delim1 = ".",
x_delim2="_", distinguish_1="1", distinguish_2="2",
y_order="spi", y_stem="com", y_delim1 = ".", y_delim2="_")

comsat.bidys.config.script <- scriptBiDy(dvn, lvxname = "Sat",
lvyname = "Com", type = "SEM",
writeTo = tempdir(),
fileName = "BiDy_S")

jsakaluk/dySEM documentation built on March 18, 2024, 1:01 p.m.