On page 92: the order_one crossover type is declared as
def order_one_crossover(p1, p2) do
On page 94: The default is set to
&Toolbox.Crossover.order_one/2
Thanks! It should be order_one_crossover to match the rest of the implementations. I believe there may be some additional bad references to single_point versus single_point_crossover as well. I’ll put fix this for the next version as well!