[R] plotting magnitude

Dylan Beaudette dylan.beaudette at gmail.com
Tue Dec 18 22:08:28 CET 2007

On Tuesday 18 December 2007, dkowalske at umassd.edu wrote:
> I am plotting fishing vessel positions and want these points to be
> relative in size to the catch at that point.  Is this possible? I am just
> begining to use R and my search of the help section didnt help in this
> area.  Heres what Im using so far
> xyplot(data$latdeg~data$londeg |vessek , groups=vessek,
> xlim=rev(range(69:77)),ylim=(range(35:42)), data=data,
> 	main=list ("Mackerel catches", cex=1.0),
> 		ylab="latitude", notch=T, varwidth=T,
> 		xlab="longitude", cex.axis=0.5,)
> any info would be appreciated

how about scaling your plotting symbols by the sqrt() of their value. or 
see ?bubble in the gstat package.



Dylan Beaudette
Soil Resource Laboratory
University of California at Davis

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