Changes in version 1.2.1 (2021-02-15)                  

Bugs and Improvements

  - MonoClus(): default value for distmethod argument is now NULL so
    that the it can be set to Euclidean (when cir.var is not set) or
    Gower distance (when cir.var is set).
  - Fix typos and a trailing space in the warning message of
    as_MonoClust() function.
  - Small improvement in how ncores argument is processed in perm.test()
    and cv.test(). It did not have a problem before but the improvement
    helps remove errors in Github Actions CI in Windows environment.
  - \@fig tags in the vignette is removed.
  - URL to lifecycle badge in README.md is updated.
  - Start unit test component with the first test is for as_MonoClust()
    function.

                 Changes in version 1.2.0 (2020-11-24)                  

New functions

  - inertia_calc() and medoid() are now exported functions.
  - is_MonoClust() to check if an object is an inherited class of
    MonoClust.
  - Create a S3 function as_MonoClust() so other packages (such as PULS)
    can reuse print and plot functions. However, no implementation is
    done in this package.

Changes to functions

  - plot.MonoClust() allows the cols argument to have the length greater
    than the number of leaves. In that case, function will not throw
    error and only a subset of it will be used.
  - MonoClust.object gains alt object as an indicator of whether an
    alternate route is available.

Bugs and Improvements

  - Fix typos.
  - More minimum version requirements for other dependencies.

                 Changes in version 1.1.0 (2020-11-17)                  

Changes to functions

  - Remove bipartvar column from frame object of MonoClust object. var
    column should be sufficient for showing splitting variable names.
  - alt column in frame object of MonoClust is now a nested tibble
    containing alternate split details. However, the package does not
    support specifying an alternate splitting route so users may have to
    run step-by-step by indicating nclusters = 2 in MonoClust() and then
    on each branch.
  - Remove arctic_2019 data set. It was not used anywhere in the
    examples.

Improvements

  - Add documentation for MonoClust.object to explain its structure.

Fix bugs

  - Min version of dependency tibble() is 3.0.0 because
    tibble::add_row() is used with the new behavior.
  - Fix some typos and clarify some documentation.

                 Changes in version 1.0.0 (2020-11-06)                  

  - Package is now fully working with all features intended.
  - Rewrote a lot of internal functions to clean up unnecessary codes.
  - Added ggplot2 versions of CV plot.
  - PCP plot for circular data is now named ggpcp and uses ggplot2.
  - New circular add/subtract operators: %cd+%, %cd-% (in degree),
    %cr+%, and %cr-% (in radian).
  - Added wind_sensit_2008 data set.
  - Added a vignette using R Markdown.
  - Updated documentation.

Changes to functions

  - MonoClust() removed perm.test and alpha arguments. Users now need to
    run perm.test() separately to perform permutation test on a
    MonoClust.
      - Removed labels, corders, ran from the output.
      - Membership and Dist outputs of MonoClust() are now membership
        and dist, respectively.
  - plot.MonoClust() added uniform, branch, minbranch, stats, cols.type,
    and show.pval.
  - cv.test() now returns unified output for both LOOCV and k-fold. It
    includes MSE and SE table and a note with the type of
    cross-validation.
  - abbrev argument in plot.MonoClust() and print.MonoClust() now
    accepts descriptive options "no", "short", "abbreviate".
  - method argument in perm.test() now uses descriptive options "sw",
    "rl" and "rn". Users can now decide whether to apply Bonferroni
    correction with bon.adj argument.
  - predict.MonoClust() removed na.action. type argument now accepts
    more meaningful options "centroid" or "medoids".
  - Added parallel processing capability to perm.test() and cv.test().

                        Changes in version 0.4.0                        

  - Removed the categorical variable feature to make sure it works well
    for all other cases.

                        Changes in version 0.3.0                        

  - Added support for foreach when searching for the best split.
  - Added a NEWS.md file to track changes to the package.