plot(time, pop, axes=F, ylim=c(0, max(pop)), xlab="", ylab="", type="l", col="black", main="", xlim=c(7000, 3400))
points(time, pop, pch=20, col="black")
axis(2, ylim=c(0, max(pop), col="black", lwd=2))
mtext(2, text="Population", line=2)
par(new=T)
plot(time, med, axes=F, ylim=c(0, max(med)), xlab="", ylab="", type="l", lty=2, main="", xlim=c(7000, 3400), lwd=2)
points(time, med, pch=20)
axis(2, ylim=c(0, max(med)), lwd=2, line=3.5)
mtext(2, text="Median Group Size", line=5.5)
par(new=T)
plot(time, grp, axes=F, ylim=c(0, max(grp)), xlab="", ylab="", type="l", lty=3, main="", xlim=c(7000, 3400), lwd=2)
points(time, grp, pch=20)
axis(2, ylim=c(0, max(grp)), lwd=2, line=7)
mtext(2, text="Number of Groups", line=9)
axis(1, pretty(range(time), 10))
mtext("cal BP", side=1, col="black", line=2)
legend(x=7000, y=12, legend=c("Population", "Median Group Size", "Number of Groups"), lty=c(1, 2, 3), cex=0.5)