population models for undergraduates
Can you describe the "more complicated model with lags" that you are interested in? Can you write it out mathematically? On Tue, Nov 29, 2016 at 9:56 AM, Stratford, Jeff <
jeffrey.stratford at wilkes.edu> wrote:
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/ ******************************************************** [[alternative HTML version deleted]]
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