Extracts the model modification indices from the MODEL MODIFICATION INDICES section of one
or more Mplus output files. If the target is a directory, all .out files therein will be parsed
and a single list will be returned, where the list elements are named by the output file name.
Returned parameters typically include the pairwise relationships between variables to be freed,
the change in model chi-square (M.I.), and the expected parameter change (E.P.C.).
extractModIndices(target = getwd(), recursive = FALSE, filefilter)If target is a single file, a data.frame
containing modification results for the target output file will be
returned. If target is a directory, a list will be returned,
where each element contains a data.frame of the modification indices
for a single file, and the top-level elements are named after the
corresponding output file name. The basic data.frame containing
the MODEL MODIFICATION INDICES section of outfile. Variables include
The first variable in the pair to be freed according to the M.I.
The suggested relationship between modV1 and modV2
(e.g., WITH for freeing the covariance between modV1 and modV2)
The first variable in the pair to be freed according to the M.I.
The decrease in model chi-square if the specified relationship is freely estimated
The expected parameter estimate between modV1 and modV2 if freed.
The EPC value standardized using the variances of the continuous latent variables.
The EPC value standardized using the variances of the continuous latent variables as well as the variances of the background and/or outcome variables.
the directory containing Mplus output files (.out) to parse OR the single output file to be parsed. 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”
optional. If TRUE, parse all models
nested in subdirectories within target. Defaults to
FALSE.
a Perl regular expression (PCRE-compatible)
specifying particular output files to be parsed within directory.
See regex or http://www.pcre.org/pcre.txt for
details about regular expression syntax.
Michael Hallquist
readModels, extractModelSummaries, extractModelParameters
if (FALSE) {
ex3.14 <- extractModIndices(
"C:/Program Files/Mplus/Mplus Examples/User's Guide Examples/ex3.14.out")
}
Run the code above in your browser using DataLab