[R-sig-teaching] population models for undergraduates

[Stratford, Jeff]

Hi everyone,

I'm using R to make graphs for lecture notes and I hope to get to the point
where students are reproducing graphs in lab.

I can do very simple logistic growth models (example below) but can anyone
share more complicated models with lags etc?

Very much appreciated,

Jeff


#### pop size over time  ###

r <- 0.033
K <- 100
t <- 1:250
N0 <- 10
N0
poplog <- (K-N0)/N0
Nt  <- K/(1+(poplog)*exp(-r*t))
Nt
plot(t, Nt, type="l", lwd=3, cex.lab=1.5, cex.axis=1.5)


********************************************************
Jeffrey A. Stratford, PhD
Department of Biology and Health Sciences &
Director of Study Abroad
Office: Cohen Science Center 210
Address: 84 W South Street
Wilkes University, PA 18766 USA
570-332-2942
https://sites.google.com/a/wilkes.edu/stratford/home
Blog http://concreteornithology.blogspot.com/
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