Changes in version 1.1.0 (2026-03-24)                  

New Features

  - Added support for cosine distance metric in hierarchical clustering
    via dist = "cosine" parameter in heat_map_clust() and heat_map().
      - When using cosine distance, tree_cut values between 0 and 1 are
        interpreted as absolute cosine distance thresholds rather than
        proportional tree heights. This allows for more intuitive
        clustering based on actual cosine distance values.
      - Non-cosine distance metrics retain the original proportional
        height behavior.
  - Added manual cluster split functionality - clusters can now be
    manually defined by:
      - Specifying the number of columns/rows in each cluster (e.g.,
        tree_cut_x = c(3,4,5))
      - Supplying a vector of cluster indices to assign each column/row
        to a specific cluster (e.g., tree_cut_x =
        c(1,1,1,2,2,2,2,3,3,3))
  - Enhanced dendrogram rendering to support manual splits while
    preserving the option to display dendrograms with manually defined
    clusters.
  - Added cell_border_mask parameter to selectively apply colored
    borders to specific cells. Accepts a logical matrix of the same
    dimensions as the input data, where TRUE indicates a cell should
    have a colored border and FALSE indicates a transparent border.
  - Added cell_col_scale_limits parameter to set custom limits for
    colour scales, enabling consistent colour scales across multiple
    heatmaps (e.g., cell_col_scale_limits = c(0, 100)).
  - Added cell_size_scale_limits parameter to set custom limits for size
    scales when using cell_size = TRUE, ensuring consistent size scaling
    across multiple plots.

Improvements

  - Improved internal distance calculation with optimized cosine
    distance computation.
  - Better handling of zero-length vectors in distance calculations.
  - Scale limits (colour and size) are now computed from unrounded data
    before any rounding occurs, preventing empty legends when all values
    round to the same value.
  - Colour and size assignments now use unrounded values for accuracy,
    while rounding only affects displayed cell text. This preserves
    visual distinctions even when rounded text appears identical.

                        Changes in version 1.0.0                        

  - Create HeatmapR to easily construct high resolution complex heatmaps
    using base graphics.