Re: [R] split a y-axis to show data on different scales

From: Anupam Tyagi <AnupTyagi_at_yahoo.com>
Date: Sat 19 Aug 2006 - 22:27:37 EST

Johannes Hüsing <hannes <at> ruhrau.de> writes:

>
> > The pro's and con's of using "scale breaks" were discussed by
> > Cleveland (1985) The Elements of Graphing Data (Wadsworth, pp. 85-91,
> > 149). I don't know what Cleveland said about this is the second edition
>
> Spencer Graves:
> > but I believe there are times when scale breaks are
> > appropriate, but the display should make this nonstandard transition
> > very clear;
>
> ... in which case you are close to having two graphs
> sharing an x-axis and therefore saving on ink (yay!).
>
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>

This is an interesting visual interpretation issue: it may be possible to shade the y-axis (which his thick like the top bars in Lattice plots), or shade the main graphing area from dark to light (or two shades, for two scales) to give a visual idea about the "density" or "stretch" of the space/scale on which the points are plotted. There is problems with this as well (interpretation of scale), but sometimes it may provide a better and quick visual communication. Is this possible in R?



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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. Received on Sat Aug 19 22:35:26 2006

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