Changes in version 2.0                         

  - In the rendered scatterplot, dashed segments replaced by dotted
    segments to improve visual clarity.
  - In the scatterplot, the category selected via the 'ref.category'
    parameter will be rendered with a colour, whereas the others will be
    rendered in grey to help the users focus on the selected category.
  - Column and row labels are now given the same colour of the
    corresponding dots (blue and red respectively).
  - Parameter added to control the dots' size.
  - New dataset added ('borggroenen').
  - New example added to the help documentation.
  - Amendments and updates to the help documentation.
  - Web link to the package's vignette added to the help documentation.
  - New bibliographical references added to the help documentation and
    to the package's description.
  - Minor internal optimisations.