plotting magnitude
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. cheers, Dylan
Dylan Beaudette Soil Resource Laboratory http://casoilresource.lawr.ucdavis.edu/ University of California at Davis 530.754.7341