Changes in version 1.0.0                        

Changes:

  - Change default behavior for factor simulations, order of levels are
    maintained now instead of alphabetical order which is the default in
    R.

                 Changes in version 0.7.2 (2019-01-23)                  

  - Small maintenance fix for incoming 0.8 dplyr.

                 Changes in version 0.7.1 (2018-07-25)                  

  - Release for new tidy simulation framework
  - New vignettes showing this functionality

                        Changes in version 0.6.3                        

  - Add piecewise linear simulation.

                        Changes in version 0.6.2                        

  - Add cross classified model simulation
  - Add option to specify any model to fit for power analysis
      - This brought about a change to use broom::tidy.

                        Changes in version 0.6.1                        

  - Generalize fact_vars code
      - This now is similar to cov_param

                 Changes in version 0.6.0 (2017-07-24)                  

  - Shiny Application works again!
      - Can now simulate and run power.
      - Able to download simulation and power tables (I think).

                        Changes in version 0.5.3                        

  - Fixed basic functionality of Shiny application
      - This includes simulation and power
          - Needs more testing at this stage.

                        Changes in version 0.5.2                        

  - Addition of count outcome from sim_glm.
      - This added an additional argument that must be specified:
          - outcome_type = 'logistic' = 0/1 dichotomous simulation
          - outcome_type = 'poisson' = count outcomes.

                        Changes in version 0.5.1                        

  - Bug fix for sim_glm when using fact_vars generation options.

                 Changes in version 0.5.0 (2017-05-25)                  

  - Heterogeneity of variance simulation
  - Flexible time specification for longitudinal models
  - Change 'lvl' to 'level' throughout package
  - Flexible specification of unbalanced simulation
  - Misspecification of model for power analysis
  - Expand power output.

                        Changes in version 0.4.0                        

  - Update to add ability to simulate covariates from any R distribution
    function
      - Old code will no longer work with this new version.
      - Added new opts argument to cov_param for optional distribution
        arguments.
  - Adjusted vignettes to follow new code
  - Adjusted unit tests.
  - Added documentation for changes, including in vignettes.

                        Changes in version 0.3.4                        

  - Added a NEWS.md file to track changes to the package.