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data(qlet2.dat)
Data from Paul O'Higgins (Hull-York Medical School) and David Johnson (Leeds)
data(qlet2.dat) k<-dim(qlet2.dat)[1] n<-dim(qlet2.dat)[3] par(pty="s") plot(qlet2.dat[,,1],xlim=c(0,250),ylim=c(0,250),type="n",xlab="",ylab="") for (i in 1:n){ points(qlet2.dat[,,i],pch=c(1:k)) }
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