Nothing
custplot <- function(a){
pdf()
# plot(a$t, a$"cases", col=4, lty=1)
plot(a$t, a$D, xlab="time (days)", ylab="", type="l")
lines(a$t, a$fs, col=3)
lines(a$t, a$e.D, col=2)
dev.off()
}
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