search for: maxanimals

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2008 Jan 15
1
Population model question
...dead animals In the starting population there are, say, 500, animals To determine whether each of these animals survives to a following age-class, a uniformal chance is generated, resulting in "TRUE" if the animal lives, or "FALSE" if it dies Live.Animals <- array (FALSE, c(MaxAnimals, Years)) Dead.Animals <- array (FALSE, c(MaxAnimals, Years)) MaxAnimals <- 5000 ## max animals in the pop. Years <- 100 ## years in the simulation Live.Animals[,yy] <- ifelse ((runif(MaxAnimals,0,1) < sur.age) & Live.Animals[,yy-1], TRUE, FALSE) ## Live.Animals [,yy-1]...