eulerr

Area-proportional Euler diagrams with ellipses.

Authors

Johan Larsson

Peter Gustafsson

Published

18 June 2018

Details

Set Visualization and Reasoning 2018, Edinburgh, United Kingdom

Links

Docs Code CRAN

eulerr creates area-proportional Euler diagrams using ellipses instead of just circles. While most Euler diagram software is limited to circles (which often can’t accurately represent set relationships), eulerr uses numerical optimization to fit ellipses that can represent a wider range of set intersections accurately.

The package handles any number of sets and automatically finds the best layout using a two-step procedure: first generating an initial layout from pairwise relationships, then optimizing using all set relationships simultaneously. It’s ideal for visualizing overlapping categories in genomics, survey data, or any domain where set relationships need clear visual representation.

Citation

BibTeX citation:

@inproceedings{larsson2018,
  author = {Larsson, Johan and Gustafsson, Peter},
  publisher = {CEUR Workshop Proceedings},
  title = {A Case Study in Fitting Area-Proportional {Euler} Diagrams
    with Ellipses Using Eulerr},
  booktitle = {Set Visualization and Reasoning 2018},
  volume = {2116},
  pages = {84-91},
  date = {2018-06-18},
  address = {Edinburgh, United Kingdom},
  url = {http://ceur-ws.org/Vol-2116/paper7.pdf},
  langid = {en},
  abstract = {Euler diagrams are common and user-friendly visualizations
    for set relationships. Most Euler diagrams use circles, but circles
    do not always yield accurate diagrams. A promising alternative is
    ellipses, which, in theory, enable accurate diagrams for a wider
    range of input. Elliptical diagrams, however, have not yet been
    implemented for more than three sets or three-set diagrams where
    there are disjoint or subset relationships. The aim of this paper is
    to present eulerr: a software package for elliptical Euler diagrams
    for, in theory, any number of sets. It fits Euler diagrams using
    numerical optimization and exact-area algorithms through a two-step
    procedure, first generating an initial layout using pairwise
    relationships and then finalizing this layout using all set
    relationships. container-title: Proceedings of International
    Workshop on Set Visualization and Reasoning}
}

For attribution, please cite this work as:

Larsson, Johan, and Peter Gustafsson. 2018. “A Case Study in Fitting Area-Proportional Euler Diagrams with Ellipses Using Eulerr.” In Set Visualization and Reasoning 2018, 2116:84–91. Edinburgh, United Kingdom: CEUR Workshop Proceedings. http://ceur-ws.org/Vol-2116/paper7.pdf.