Code and text file with parameter values to replicate simulations presented in Figure 6 of the paper. The code produces two files per replicate with the values of the traits u and v in the population over evolutionary time. The parameters can be adjusted in the text file and are: K = carrying capacity; n0= initial size of the population at the start of a growth cycle; doubrate= doubling rate; u0= initial value of u for all individuals in the population; v0= initial value of v for all individuals in the population; u= mutation rate; mutsize= size of a mutational step; numrep= number of evolutionary replicates to run; numcycles = number of growth cycles per replicate (the default is to run each simulation until >95% of the individuals have u=0 but the simulations can also be run for a fixed number of growth cycles per replicate which is set by this parameter. To use this option go to lines 71-72 of the code and change accordingly).