Achim Zeileis wrote: > On Sun, 29 Jan 2006 [EMAIL PROTECTED] wrote: > > >>Full_Name: Greg Kochanski >>Version: 2.2.1 >>OS: Debian Linux (testing) >>Submission from: (NULL) (212.159.16.190) >> >> >>mosaicplot(x, shade=TRUE) is intended to color the blocks >>blue if they are more common than one might expect >>and red if they are rarer than one might expect. >> >>Unfortunately, if a block is much rarer than expected, >>it is so narrow that one cannot see the red. > > > Where is the bug?? Please read Section 9 in > http://CRAN.R-project.org/doc/manuals/R-FAQ.html > and also the posting guide at > http://www.R-project.org/posting-guide.html >
The bug is that the software produces results that could lead to the wrong conclusion in a research paper, or could lead the readers of the research paper to an erroneous belief. That sounds like a relevant definition of a bug to me. From section 9: > Finally, a command's intended definition may not be best for > statistical analysis. This is a very important sort of problem, > but it is also a matter of judgment. > > ... The manual's job is to make everything clear. > It is just as important to report documentation bugs > as program bugs.... From my reading of section 9, this is a documentation bug. ... > For an enhanced implementation of mosaic plots written in the grid > graphics system, see the package "vcd" and the functions mosaic() and > strucplot(). See the package vignettes for details on control of the > graphical appearance and also for combining shading and significance > testing. To overcome the problem of small cells, another approach is to > plot expected instead of observed frequencies. > Z You shouldn't be telling this to me, you should be putting it in the documentation where it might help more than one person. Putting a "see also" note in help(mosaicplot) that points to the "vcd" package, and "mosaic" and "strucplot" functions might be a solution to the problem. ______________________________________________ R-devel@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-devel
