                        Changes in version 2.0.4                        

  - Adds distance-based smooth PRC.

  - Makes the analysis an order faster using warm initialization.

                        Changes in version 2.0.3                        

  - Adds the CCA-based version to smoothPRC.

  - Adds an option to smoothPRC for user-defined covariates.

                        Changes in version 2.0.2                        

  - smoothPRC can now extract more than a single axis. The names in
    smoothPRC object have been changed.

                        Changes in version 2.0.1                        

  - Correction of a bug resulting in anova of a smooth PRC object to
    give p-value=1.

  - Plot function add: plotsmoothPRC with underlying functions

                        Changes in version 2.0.0                        

  - Added smoothPRC using LMMsolver

                        Changes in version 1.0.0                        

  - Added sample points to PRC curves in plotPRC
