Den 2007-02-16 17:46, Michael Friendly skrev: > Dear R community > > In a current paper, I'm (briefly) considering the topic of producing > scatterplots or maps with point labels positioned in such a way as to > minimize label overlap and occlusion. This is a topic with a large, but > scattered literature. In CS, it is considered NP-hard, but there are > a variety of approximate solutions. The most complete bibliography I've > found is > the Map-Labeling Bibliography, > http://liinwww.ira.uka.de/bibliography/Theory/map.labeling.html > > AFAIK, the only concrete and published implementation is a Fortran > program published by Noma (below), and then adapted by Warren Kuhfeld > at SAS in PROC PLOT, and used in his %plotit macro. > > Journal Title - Psychometrika > Article Title - Heuristic method for label placement in scatterplots > Volume - Volume 52 > Issue - 3 > First Page - 463 > Last Page - 468 > Issue Cover Date - 1987-09-27 > Author - Elliot Noma > DOI - 10.1007/BF02294366 > Link - http://www.springerlink.com/content/c4k6205r83156165 > > Does anyone know of a related R (or other) public implementation of a > solution to this problem?
Take a look at `thigmophobe.labels' in the `plotrix' package. HTH, Henric > > thanks, > -Michael > ______________________________________________ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
