Changes in version 0.4.1                        

  - Modified group_center to produce numeric values and add an alias
    cwc.

                 Changes in version 0.4.0 (2025-01-09)                  

  - Added mixPV, lrtPV to allow for models using weights with the WeMix
    package.
  - Added the wscale function to scale weights ala Mplus.

                 Changes in version 0.2.0 (2022-05-10)                  

  - Revised robust_mixed (w/Bixi Zhang).
  - Improved printing output.
  - Added engage and engage.miss datasets.
  - Modified wording in nmiss.

                 Changes in version 0.1.0 (2022-01-11)                  

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