Convert Mplus Syntax to surveymixr — mplus_to

Parses Mplus input file and suggests equivalent surveymixr code.

Usage

mplus_to_surveymixr(mplus_file)

Arguments

mplus_file: Path to Mplus .inp file

Value

Character string with suggested R code

Details

This function reads an Mplus input file for growth mixture models and generates equivalent surveymixr code. Note that not all Mplus features can be directly translated.

Supported Mplus features:

VARIABLE section: NAMES, USEVAR, CLASSES, CLUSTER, WEIGHT, STRATIFICATION
ANALYSIS section: TYPE = MIXTURE, STARTS
MODEL section: Linear and quadratic growth specifications

Examples

if (FALSE) { # \dontrun{
# Create example Mplus file
mplus_code <- '
VARIABLE:
  NAMES = id time y stratum psu weight;
  USEVAR = y;
  CLASSES = c(3);
  CLUSTER = psu;
  STRATIFICATION = stratum;
  WEIGHT = weight;

ANALYSIS:
  TYPE = MIXTURE;
  STARTS = 500 100;

MODEL:
  %OVERALL%
  i s | y@0 y@1 y@2 y@3 y@4;
'

writeLines(mplus_code, "example.inp")
r_code <- mplus_to_surveymixr("example.inp")
cat(r_code)
} # }