Changes in version 0.0.6 (2025-11-10)                  

  - Added options for filtering and missing data
  - itsadug now recommended rather than imported by default

                 Changes in version 0.0.4 (2021-09-19)                  

  - Updated to remove warnings from new version of dplyr
  - More robust to missing data in a single eye

                 Changes in version 0.0.3 (2020-06-12)                  

  - Documentation moved to vignettes
  - Dependency on package spectral removed due to problems with CRAN

                 Changes in version 0.0.2 (2020-05-15)                  

  - Minor patch to avoid breaks with new version of dplyr
  - Warning errors removed from ggplot2 when plotting