v-plots : Designing Hybrid Charts for the Comparative Analysis of Data Distributions

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Computer Graphics Forum. Wiley. 2020, 39(3), pp. 565-577. ISSN 0167-7055. eISSN 1467-8659. Available under: doi: 10.1111/cgf.14002
Zusammenfassung

Comparing data distributions is a core focus in descriptive statistics, and part of most data analysis processes across disci-plines. In particular, comparing distributions entails numerous tasks, ranging from identifying global distribution properties,comparing aggregated statistics (e.g., mean values), to the local inspection of single cases. While various specialized visualiza-tions have been proposed (e.g., box plots, histograms, or violin plots), they are not usually designed to support more than a fewtasks, unless they are combined. In this paper, we present the v-plot designer; a technique for authoring custom hybrid charts,combining mirrored bar charts, difference encodings, and violin-style plots. v-plots are customizable and enable the simulta-neous comparison of data distributions on global, local, and aggregation levels. Our system design is grounded in an expertsurvey that compares and evaluates 20 common visualization techniques to derive guidelines for the task-driven selection ofappropriate visualizations. This knowledge externalization step allowed us to develop a guiding wizard that can tailor v-plotsto individual tasks and particular distribution properties. Finally, we confirm the usefulness of our system design and the user-guiding process by measuring the fitness for purpose and applicability in a second study with four domain and statistic expert

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ISO 690BLUMENSCHEIN, Michael, Luka J. DEBBELER, Nadine C. LAGES, Britta RENNER, Daniel A. KEIM, Mennatallah EL-ASSADY, 2020. v-plots : Designing Hybrid Charts for the Comparative Analysis of Data Distributions. In: Computer Graphics Forum. Wiley. 2020, 39(3), pp. 565-577. ISSN 0167-7055. eISSN 1467-8659. Available under: doi: 10.1111/cgf.14002
BibTex
@article{Blumenschein2020vplot-49225,
  year={2020},
  doi={10.1111/cgf.14002},
  title={v-plots : Designing Hybrid Charts for the Comparative Analysis of Data Distributions},
  number={3},
  volume={39},
  issn={0167-7055},
  journal={Computer Graphics Forum},
  pages={565--577},
  author={Blumenschein, Michael and Debbeler, Luka J. and Lages, Nadine C. and Renner, Britta and Keim, Daniel A. and El-Assady, Mennatallah}
}
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