[R] plotting vector of symbols

[stephen sefick]

I did something very similar in ggplot2 about a year ago.  Use the
unique sampling location from the species count data (rownames) as a
factor column, and then use that in a geom_color or geom_shape add on
to qplot

untested:

library ggplot2
a <- metaMDS(foo, k=3)
b <- rownames(foo)
d <- data.frame(b , a$points)
qplot(axis_1, axis_2, data=d, colour="b")

something like this may work - it would be nice to have a reproducible example

Stephen

On Wed, Sep 2, 2009 at 1:11 PM, Wade Wall<wade.wall at gmail.com> wrote:
> Hi all,
>
> Is there a way in R to plot points using symbols as defined in another
> vector without adding a separate points line for each symbol?  For
> example, I have the results from an ordination with ~ 35 points and an
> associated vector that corresponds to different symbols in pch for the
> 35 symbols.  I would like to write one line, rather than dividing up
> the 35 points into categories first, but I can't see to find a way.
> Basically, I am trying to do this . . . .
>
> points(ordination$points, pch=popsymbols[,2]), where popsymbols[,2] is
> a column of symbol values.
>
> Thanks for any help,
>
> Wade Wall
>
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-- 
Stephen Sefick

Let's not spend our time and resources thinking about things that are
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make us feel like gods.  We are mammals, and have not exhausted the
annoying little problems of being mammals.

								-K. Mullis