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simstandard 0.7.0 development version

  • Changed Depends field from R (>= 3.4.0) to R (>= 3.5.0) because of dependency on mvtnorm package.
  • Fixed bug in how composite score indicators are assigned for higher-order factors. Previous code did not distinguish between indicator paths and regression paths.

simstandard 0.6.3 2021-05-07

CRAN release: 2021-05-07

  • Added get_factor_score_validity_se function to return factor score standard errors.
  • Added get_model_names function to return a list of model variable names.

simstandard 0.6.2 2021-01-21

CRAN release: 2021-01-21

  • Added get_factor_score_coefficients function to return factor score coefficients
  • Added get_factor_score_validity function to return factor score validity coefficients
  • Added v_factor_score_disturbance and v_factor_score_residual to v_names list returned by sim_standardized_matrices.
  • The v_factor_score list now only returns factor score names associated with the latent variables.

simstandard 0.6.1 2020-12-22

  • Can specify a mean and standard deviation in the add_composite_scores and add_factor_scores functions.
  • The add_factor_scores function now appends _FS to the factor score names.

simstandard 0.6.0 2020-11-25

CRAN release: 2020-11-25

  • Added get_model_implied_correlations function, which returns the model-implied correlation matrix of observed variables, latent variables, error terms, factor scores, and composite variables.

simstandard 0.5.0 2020-10-22

CRAN release: 2020-10-22

  • Added composite_score_validity to list returned by sim_standardized_matrices
  • Added add_composite_scores function to add composite scores to new data.

simstandard 0.4.0 2019-01-08

  • Fixed bug that prevents computation of composite scores of third-order and fourth-order latent variables.

simstandard 0.3.0 2019-01-07

CRAN release: 2019-01-07

  • Added the matrix2lavaan function to provide a convenient method of creating lavaan syntax from matrices.
  • Added the lav2ram function to extract standardized RAM matrices from a lavaan object.
  • The sim_standardized_matrices function has a new argument, composite_threshold. If this argument is specified, variables with loadings below the threshold are not used as indicators of the composite scores.
  • Removed the semPlot package from suggests list

simstandard 0.2.1 2018-11-09

  • Fixed the method of finding indicators for composite variables. A composite now is only created from direct indicators unless the latent variable is a higher-order factor with no direct indicators.

simstandard 0.2.0 2018-11-08

CRAN release: 2018-11-08

  • Added the fixed2free function, which takes a lavaan syntax model with fixed parameters and returns a lavaan syntax model in which all parameters are free.
  • Added the model_complete function, which takes a lavaan syntax model with standardized loadings, structure coefficients, and covariances, and returns a lavaan syntax model with all standardized coefficients, including standardized variances.
  • Added the add_factor_scores function, which adds predicted factor scores to a data.frame.

simstandard 0.1.0 2018-10-06

CRAN release: 2018-10-16

  • Initial release