[R] Symbol size in plots

Martin Maechler maechler at stat.math.ethz.ch
Wed Sep 6 15:10:53 CEST 2000

>>>>> "Ben" == Ben Bolker <ben at zoo.ufl.edu> writes:

    Ben>   A mild suggestion, by the way, is that "circle", "star", etc. be
    Ben> added to the _keywords_ of symbols().  It took me a while to find
    Ben> it in the help the last time I was looking for it.

well, not "\keyword{.}" which must be from among a pretty small set.

However,  help.search("circle")  would find  `symbols()' if

- the \description{.} would be in the data base
- the default fields of help.search(.) would contain "description"
  (and they *should* really contain "alias" when they contain "name"
   in my opinion!).

    Ben>   What are the possibilities that a _full-text_ search capability
    Ben> could be added to the help front-end?  Would it be prohibitively
    Ben> slow?  (Or is there adaptable software that would, e.g., index all
    Ben> words except a list of stopwords into a reference database?)

Not only would it be quite slow and the database quite large,
I think you'd get quite a lot of false matches
[Well that could be taken care of when one would use a dialoguing frontend..]

I did have that same (for a full text search) wish myself..

However, I think that the database should start containing \description{.}..

    Ben> On 6 Sep 2000, Peter Dalgaard BSA wrote:

    >> Uwe Ligges <ligges at statistik.uni-dortmund.de> writes:
    >> > Maurizio Pisati wrote:
    >> > > 
    >> > > Dear R-listers, > > what is the best way to draw an XY
    >> scatterplot with symbol size > > proportional to the value taken on
    >> by a third variable?  > > Thank you very much for any help, > >
    >> Maurizio Pisati
    >> > 
    >> > Have a look at: > ?symbols
    >> > 
    >> > e.g.: > symbols(1:10,1:10,circles=1:10, inches=0.1)
    >> Also
    >> plot(x,y,cex=z)

    Ben> -- 318 Carr Hall bolker at zoo.ufl.edu Zoology Department, University
    Ben> of Florida http://www.zoo.ufl.edu/bolker Box 118525 (ph)
    Ben> 352-392-5697 Gainesville, FL 32611-8525 (fax) 352-392-3704

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