Enhancing scatterplots with smoothed densities

Authors:
Paul H. C. Eilers;Jelle J. Goeman
Affiliations:
Department of Medical Statistics, Leiden University Medical Centre, The Netherlands;Department of Medical Statistics, Leiden University Medical Centre, The Netherlands
Venue:
Bioinformatics
Year:
2004

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Abstract

Motivation: Scatterplots of microarray data generally contain a very large number of dots, making it difficult to get a good impression of their distribution in dense areas. Results: We present a fast and simple algorithm for two-dimensional histogram smoothing, to visually enhance scatterplots. Availability: Functions for Matlab and R are available from the corresponding author.