Add lines for the EIR(t) vs. the PR(t)

Usage

lines_eirVpr(eir, pr, nStrata, clrs = "black", llty = 1)

Arguments

eir

the daily EIR

pr

the parasite rate

nStrata

the number of population strata

clrs

a character vector of colors

llty

an integer (or integers) that specifies lty for plotting