Linear and Nonlinear Longitudinal Process in Structural Equation Modeling Framework
S4 Class for displaying figures
S4 Class for estimated factor scores and their standard errors.
Calculate p-Values and Confidence Intervals of Parameters for a Fitted...
Generate Visualization for Fitted Model
Helper Function to Generate Visualization for a Fitted Model
Derive Individual Factor Scores for Each Latent Variable Included in M...
Compute Latent Kappa Coefficient for Agreement between Two Latent Labe...
Construct An Object of mxModel for Latent Change Score Model with Time...
Extract Point Estimates And Standard Errors of Latent Change Score Mod...
Fit a Latent Change Score Model with a Time-invariant Covariate (If An...
Construct An Object of mxModel for Latent Growth Curve Model with Time...
Extract Point Estimates and Standard Errors of Latent Growth Curve Mod...
Fit a Latent Growth Curve Model with Time-invariant Covariate (If Any)
Perform Bootstrap Likelihood Ratio Test for Comparing Full and Reduced...
Compute Initial Values for Parameters of Longitudinal Mediation Models
Get Factor Loadings for a Longitudinal Mediation Model with Specified ...
Construct An Object of mxModel for Longitudinal Mediation Models To Be...
Extract Point Estimates And Standard Errors of Longitudinal Mediation ...
Fit a Longitudinal Mediation Model
Construct An Object of mxModel for Multivariate Latent Growth Curve Mo...
Extract Point Estimates And Standard Errors of Multivariate Latent Gro...
Fit a Multivariate Latent Growth Curve Model or Multivariate Latent Ch...
Compute Initial Values for Parameters of Multiple-group Models
Construct An Object of mxModel for Longitudinal Multiple Group Models ...
Extract Point Estimates And Standard Errors of Longitudinal Multiple G...
Fit a Longitudinal Multiple Group Model
Compute Initial Values for Parameters of Mixture Models
Construct An Object of mxModel for Longitudinal Mixture Models To Be E...
Extract Point Estimates And Standard Errors of Longitudinal Mixture Mo...
Fit a Longitudinal Mixture Model
Get Factor Loadings for a Mixture Model or Multiple Group Model with L...
Get Additional Parameters Related to Interval-specific Slopes, Interva...
Get Factor Loadings for a Mixture Model with MGM as Submodels
Get the Time-Varying Covariate (TVC) Information for a Mixture Model o...
Get Additional Parameters Related to Interval-specific Slopes, Interva...
Get Factor Loadings for a Mixture Model or Multiple Group Model with U...
Get Additional Parameters Related to Interval-specific Slopes, Interva...
Compute Initial Values for Parameters of Multivariate Latent Growth Cu...
Get Factor Loadings for a Multivariate Longitudinal Outcomes with Spec...
Compute Posterior Probabilities, Cluster Assignments, and Model Entrop...
Define Latent Change Score Models as Class-specific Models (Submodels)...
Define Latent Change Score Models as Class-specific Models (Submodels)...
Define Latent Growth Curve Models as Class-specific Models (Submodels)...
Define Latent Growth Curve Models as Class-specific Models (Submodels)...
Define Longitudinal Mediation Models as Class-specific Models (Submode...
Define Longitudinal Mediation Models as Class-specific Models (Submode...
Define Multivariate Latent Growth Curve Models or Multivariate Latent ...
Define Multivariate Latent Growth Curve Models or Multivariate Latent ...
Define a Latent Growth Curve Model or Latent Change Score Model with a...
Define a Latent Growth Curve Model or Latent Change Score Model with a...
Summarize Model Fit Statistics for Fitted Models
Get the Time-Varying Covariate (TVC) Information for a One-group Longi...
Compute Initial Values for Parameters of Latent Growth Curve Models or...
Construct An Object of mxModel for Latent Growth Curve Models or Laten...
Extract Point Estimates And Standard Errors of Latent Growth Curve Mod...
Fit a Latent Growth Curve Model or Latent Change Score Model with Time...
Get Additional Parameters Related to Interval-specific Slopes, Interva...
Derive Individual Growth Factors for Latent Growth Curve Models or Lat...
Compute Initial Values for Parameters of Latent Growth Curve Models or...
Get Factor Loadings for a Univariate Longitudinal Outcome with Specifi...
S4 Class for kappa statistic with confidence interval and judgment.
S4 Method for summarizing an optimized MxModel.
S4 Generic for summarizing an optimized MxModel.
Standard Methods (S4) for the package
S4 Class for posterior probabilities, membership, entropy, and accurac...
S4 Method for printing estimated factor scores and their standard erro...
S4 Method for printing kappa statistic with CI and judgement for...
S4 Method for printing point estimates with standard errors
S4 Method for printing posterior probabilities, membership, entropy, a...
S4 Method for printing p values and confidence intervals (when applica...
S4 Generic for displaying output in a table format.
S4 Method for displaying figures.
S4 Class for p values and confidence intervals (when specified).
Provides computational tools for nonlinear longitudinal models, in particular the intrinsically nonlinear models, in four scenarios: (1) univariate longitudinal processes with growth factors, with or without covariates including time-invariant covariates (TICs) and time-varying covariates (TVCs); (2) multivariate longitudinal processes that facilitate the assessment of correlation or causation between multiple longitudinal variables; (3) multiple-group models for scenarios (1) and (2) to evaluate differences among manifested groups, and (4) longitudinal mixture models for scenarios (1) and (2), with an assumption that trajectories are from multiple latent classes. The methods implemented are introduced in Jin Liu (2023) <arXiv:2302.03237v2>.