The lookupTech1Parameter function identifies the position in the Mplus model matrices corresponding to a given parameter defined in the TECHNICAL 1 PARAMETER SPECIFICATION OUTPUT. The goal of this function is to aid in identifying problematic parameters often printed in the warnings and errors section of Mplus output.
this function should handle initTags that still contain tags once the initCollection is finalized, then process the deferred body tags the notion is that the substitutions will be handled in an inefficient manner – using lots of regular expression parsing, not using the matched tags data.frame
extractModelSummaries
(Package: MplusAutomation) :
Extract summary statistics from a single output file or from a group of Mplus models within a directory
Parses a group of Mplus model output files (.out extension) for model fit statistics. At this time, the details extracted are fixed and include: Filename, InputInstructions, Title, Estimator, LL, BIC, aBIC, AIC, AICC, Parameters, Observations, CFI, TLI, RMSEA_Estimate, RMSEA_90CI_LB, RMSEA_90CI_UB, RMSEA_pLT05, ChiSqM_Value, ChiSqM_DF, ChiSq_PValue, BLRT_KM1LL, BLRT_PValue, BLRT_Numdraws). The infrastructure is in place to allow for user-specified selection of summary statistics in future versions.
The TECH7 option is used in conjunction with TYPE=MIXTURE to request sample statistics for each class using raw data weighted by the estimated posterior probabilities for each class.
This is a method for updating an Mplus model object. It takes an Mplus model object as the first argument, and then optionally any sections to update. There are two ways to update a section using a formula interface. ~ "new stuff" will replace a given section with the new text. Alternately, you can add additional text using ~ + "additional stuff". Combined these let you replace or add to a section.
This is a function to create an Mplus model object in R. The object holds all the sections of an Mplus input file, plus some extra R ones. Once created, the model can be run using other functions such as mplusModeler or updated using methods defined for the update function.
providing 
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