Generation Vs Error Plot

[p-suresh-kumar]

Dear GAD,
is there any function to plot generation vs error plot,
or how to find the error at each generation?

[ahmedfgad]

There is only function to plot the generation vs fitness.

If you want to see plot the graph of the error not the fitness, then here is how you can do it for the pygad.kerasga module:

The best_solutions_fitness attribute of instances from the pygad.GA class holds the best fitness value in each generation. You can convert the fitness values to errors as follows:

best_solutions_error = 1.0 / numpy.array(ga_instance.best_solutions_fitness)

Then show the graph:

matplotlib.pyplot.plot(best_solutions_error)
matplotlib.pyplot.show()

That should work. Please let me know if you have any doubts.