# Changelog¶

## What’s new in version 0.4¶

- Added option to display both the absolute frequency and the percentage of the total for each intersection and category. (#89 with thanks to Carlos Melus and Aaron Rosenfeld)
- Improved efficiency where there are many categories, but valid combinations
are sparse, if
`sort_by='degree'`

. (#82) - Permit truthy (not necessarily bool) values in index. (#74 with thanks to @ZaxR)
`intersection_plot_elements`

can now be set to 0 to hide the intersection size plot when`add_catplot`

is used. (#80)

## What’s new in version 0.3¶

- Added
`from_contents`

to provide an alternative, intuitive way of specifying category membership of elements. - To improve code legibility and intuitiveness,
`sum_over=False`

was deprecated and a`subset_size`

parameter was added. It will have better default handling of DataFrames after a short deprecation period. `generate_data`

has been replaced with`generate_counts`

and`generate_samples`

.- Fixed the display of the “intersection size” label on plots, which had been missing.
- Trying to improve nomenclature, upsetplot now avoids “set” to refer to the
top-level sets, which are now to be known as “categories”. This matches the
intuition that categories are named, logical groupings, as opposed to
“subsets”. To this end:
`generate_counts`

(formerly`generate_data`

) now names its categories “cat1”, “cat2” etc. rather than “set1”, “set2”, etc.- the
`sort_sets_by`

parameter has been renamed to`sort_categories_by`

and will be removed in version 0.4.

## What’s new in version 0.2.1¶

- Return a Series (not a DataFrame) from
`from_memberships`

if data is 1-dimensional.

## What’s new in version 0.2¶

- Added
`from_memberships`

to allow a more convenient data input format. `plot`

and`UpSet`

now accept a`pandas.DataFrame`

as input, if the`sum_over`

parameter is also given.- Added an
`add_catplot`

method to`UpSet`

which adds Seaborn plots of set intersection data to show more than just set size or total. - Shading of subset matrix is continued through to totals.
- Added a
`show_counts`

option to show counts at the ends of bar plots. (#5) - Defined
`_repr_html_`

so that an`UpSet`

object will render in Jupyter notebooks. (#36) - Fix a bug where an error was raised if an input set was empty.