Run Mplus Models

This function runs a group of Mplus models (.inp files) located within a single directory or nested within subdirectories.

runModels(
  target = getwd(),
  recursive = FALSE,
  filefilter = NULL,
  showOutput = FALSE,
  replaceOutfile = "always",
  logFile = "Mplus Run Models.log",
  Mplus_command = detectMplus(),
  killOnFail = TRUE,
  local_tmpdir = FALSE,
  quiet = TRUE
)

Arguments

target	a character vector where each element is a directory containing Mplus input files (.inp) to run OR a single .inp file to be run. Elements may be a full path, relative path, or a filename within the working directory. Defaults to the current working directory. Example: “C:/Users/Michael/Mplus Runs”
recursive	optional. If TRUE, run all models nested in subdirectories within directory. Defaults to FALSE. Not relevant if target is a single file.
filefilter	a Perl regular expression (PCRE-compatible) specifying particular input files to be run among those found in target. See regex or http://www.pcre.org/pcre.txt for details about regular expression syntax.
showOutput	optional. If TRUE, show estimation output (TECH8) in the R console. Note that if run within Rgui, output will display within R, but if run via Rterm, a separate window will appear during estimation.
replaceOutfile	optional. Currently supports three settings: “always”, which runs all models, regardless of whether an output file for the model exists; “never”, which does not run any model that has an existing output file; and “modifiedDate”, which only runs a model if the modified date for the input file is more recent than the output file modified date (implying there have been updates to the model).
logFile	optional. If non-null, specifies a file (and optionally, directory) that records the settings passed into the function and the models run (or skipped) during the run.
Mplus_command	optional. N.B.: No need to pass this parameter for most users (has intelligent defaults). Allows the user to specify the name/path of the Mplus executable to be used for running models. This covers situations where Mplus is not in the system's path, or where one wants to test different versions of the Mplus program.
killOnFail	optional. Windows only for now. If TRUE, kill all processes named mplus.exe when runModels does not terminate normally. Defaults to TRUE.
local_tmpdir	optional. Linux/Mac for now. If TRUE, set the TMPDIR environment variable to the location of the .inp file prior to execution. This is useful in Monte Carlo studies where many instances of Mplus may run in parallel and we wish to avoid collisions in temporary files among processes.
quiet	optional. If FALSE, show status messages in the console.

Value

None. Function is used for its side effects (running models).

See also

runModels_Interactive

Author

Michael Hallquist

Examples

if (FALSE) {
  runModels("C:/Users/Michael/Mplus Runs", recursive=TRUE, showOutput=TRUE,
    replaceOutfile="modifiedDate", logFile="MH_RunLog.txt",
    Mplus_command="C:\\Users\\Michael\\Mplus Install\\Mplus51.exe")
}
if (FALSE) {
  runModels(getwd(), filefilter = "ex8.*", logFile=NULL)
}