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A Function That Writes, Saves, and Exports Syntax for Fitting the I-NULL model for indistinguishable dyads

Source: R/scriptINULL.R
scriptINULL.Rd

This function takes the outputted object from scrapeVarCross() and automatically writes, returns, and exports (.txt) lavaan() syntax for the I-NULL model described in Olsen & Kenny (2006)

Usage

scriptINULL(
  dvn,
  lvxname = "X",
  lvyname = NULL,
  writeTo = NULL,
  fileName = NULL
)

Arguments

dvn

input dvn list from scrapeVarCross

lvxname

input character to (arbitrarily) name X LV in lavaan syntax

lvyname

(optional) input character to (arbitrarily) name Y LV in lavaan syntax

writeTo

A character string specifying a directory path to where the output file(s) should be saved. If set to ".", the file(s) will be written to the current working directory. The default is NULL, and examples use a temporary directory created by tempdir(). When dealing with tabular output, writeTo is only relevant if gtTab = TRUE.

fileName

A character string specifying a desired base name for the output file. The default is NULL. The specified name will be automatically appended with the appropriate file extension (e.g., .txt for lavaan scripts, .rtf for tabular output when gtTab = TRUE, or other extensions as appropriate for the output type). 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

scrapeVarCross which this function relies on

Other indistinguishable script-writing functions: scriptISAT()

Examples

dvn <- scrapeVarCross(dat = DRES, x_order = "sip", x_stem = "PRQC", x_delim1 = "_",
x_delim2=".", x_item_num="\\d+", distinguish_1="1", distinguish_2="2")
#> 
#> ── Variable Scraping Summary ──
#> 
#> ✔ Successfully scraped 1 latent variable: PRQC
#> ℹ PRQC: 9 indicators for P1 (1), 9 indicators for P2 (2)
#> ℹ Total indicators: 18
qual.inull.script <- scriptINULL(dvn, lvxname = "Qual",
writeTo = tempdir(),
fileName = "I-NULL_script")