[R] R: plotting values on graphics

[Kaspar Pflugshaupt]

On 6.10.2000 14:51 Uhr, joseph d. hughes wrote:

...
> points(tx, ty, pch = ch, col = "red", bg = "yellow", cex = 3)
> }
> }
> 
> The problem with the code above is I only get a one character symbol at each
> node (e.g. n=123 gives me 1 on the screen).  Is there something wrong with my
> as.character or points function calls?

Yes, "points" is the wrong function to use for this, since the "pch" option
uses only one character. You should use "text"  instead. For usage see
"help(text)".

>  Is there a better way to do this?

You might also want to look at the "symbols" function available in the
current R versions. It allows you to, e.g., draw circles of a size
corresponding to your count values. I've found this quite an intuitive way
of visualizing such data.

Cheers

Kaspar Pflugshaupt

-- 

Kaspar Pflugshaupt
Geobotanisches Institut
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