1Blurb::
2Tracks the best fitness of the population
3Description::
4The \c best_fitness_tracker tracks the best fitness in the
5population. Convergence occurs after \c num_generations has passed and
6there has been less than \c percent_change in the best fitness
7value. The percent change can be as low as 0% in which case there must
8be no change at all over the number of generations.
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11Topics::
12Examples::
13Theory::
14Faq::
15See_Also::	method-soga-convergence_type-average_fitness_tracker
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