Just add a third column with link strength to the association matrix plotCophylo2

R only does natural (neperian) log scales by default, and this is lame. Here is a simple code to do decimal log scale, pretty much a requirement for scientists… The force(x/y)lim options works for natural and log scales (for the later case, you need to specify the power of 10 that you want : c(-2,2)

The GenEstim function presented here uses a very simple genetic algorithm to estimate parameters. The function returns the best estimated set of parameters ($estim), the AIC ($information) at each generation, and the cost of the best model ($bestcost) at each generation. Results of running the program with a logistic function : Logis = function(x,p) p]/(1+p]*exp(-p]*x))

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