Changes in version 0.6.0.9000                      

                 Changes in version 0.6.0 (2025-06-02)                  

New classes and methods

  - Add boxplot() methods for LogRatio and GroupedLogRatio classes.
  - Add group_factor().
  - Add plot() method for GroupedLogRatio class.
  - Add rbind() method for GroupedComposition class.

Enhancements

  - group() now preserves ordered factor.

Breaking changes

  - Rename group_length() to group_n().
  - Replace palette_color and palette_symbol arguments of barplot(),
    pairs() and plot() with color and symbol.

                 Changes in version 0.5.0 (2025-04-07)                  

Enhancements

  - barplot() gained a new names argument to hide/display row names.
  - mean() and condense() gained two new arguments ignore_na and
    ignore_zero.
  - as.data.frame() methods for LogRatio and GroupedLogRatio class
    return a data.frame with variable labels.
  - Translate into French.

Breaking changes

  - Rename group_extract() to group_subset().

                 Changes in version 0.4.0 (2025-01-14)                  

New classes and methods

  - Add ReferenceGroups, GroupedComposition and GroupedLogRatio classes
    to represent grouped data.
  - Add group(), ungroup(), group_levels(), group_names(),
    group_indices(), group_rows(), group_length(), group_size(),
    group_extract(), group_split() and is_grouped() to work with grouped
    data.
  - Add transform_lr(), transform_clr(), transform_alr(),
    transform_ilr(), transform_plr() and transform_inverse() methods for
    GroupedComposition and GroupedLogRatio objects.
  - Add is_composition(), is_logratio() and is_grouped() to check if an
    object is from a specific class.
  - Add pairs() to display a matrix of ternary plots.

Enhancements

  - as_composition() gained a new autodetect argument to enable/disable
    automatic detection of numeric variables.

Breaking changes

  - Redesign the internal mechanism for grouping data.
  - hist() now produces a single histogram.
  - plot(<LogRatio>) produces a scatter plot instead of a density plot.
  - Rename the plot() method for the CompositionMatrix class to pairs().

                 Changes in version 0.3.0 (2024-09-03)                  

New classes and methods

  - Add transformation methods for LogRatio classes (clr <-> alr, clr ->
    ilr, alr -> ilr).
  - Add condense() to compute compositional mean of data subsets.
  - Add pip() to compute proportionality index of parts.
  - Add rbind() method for CompositionMatrix class.
  - Add show() method for LogRatio class.
  - Add is_element_major(), is_element_minor(), is_element_trace() and
    is_oxide() methods for CompositionMatrix objects.
  - Add variance() and variance_total() to compute (total) variance.

Enhancements

  - Add example datasets.
  - Improve bar chart rendering.

Bugfixes & changes

  - Fix pca() for LogRatio class (default arguments were not passed to
    the internal method).

Internals

  - Store groups as factor instead of character.

Breaking changes

  - [ always returns a CompositionMatrix object by default, even if only
    one row/column is accessed.
  - Remove samples slot in all classes.
  - Remove as_features().
  - Remove metrix_var() and metric_sd().
  - Remove the base argument of transform_ilr().
  - Rename get_totals() and set_totals() to totals().
  - Rename get_groups() and get_groups() to groups().
  - Rename outliers() to detect_outlier() and redefine methods.
  - Rewrite plot() method for OutlierIndex object.

                 Changes in version 0.2.0 (2024-02-26)                  

New classes and methods

  - Add hist() methods to plot ILR histograms.
  - Add quantile() methods for compositional data matrix.
  - Add split() methods to divide into groups.

Enhancements

  - transform_ilr() gained a new argument allowing the specify the base
    of the transformation.
  - barplot() gained a new argument to display a legend.

Internals

  - List dimensio in Depends.

                 Changes in version 0.1.0 (2023-11-29)                  

  - First release.