(Coincidentally) I've been doing some experiments with AI::Genetic::Pro. Some sample output showing the best, average and min fitness of each generation. 
2016-08-19 21:42:34,960|GEN ==> 8, 62.000000, 18.000000, -216.900000
2016-08-19 21:43:11,714|GEN ==> 9, 62.000000, 19.000000, -28.340000
2016-08-19 21:43:49,558|GEN ==> 10, 62.000000, 26.000000, -63.970000
2016-08-19 21:44:26,772|GEN ==> 11, 62.000000, 29.000000, -47.570000
2016-08-19 21:45:03,968|GEN ==> 12, 62.000000, 37.000000, -32.000000
2016-08-19 21:45:41,308|GEN ==> 13, 62.000000, 51.000000, -34.000000
2016-08-19 21:46:18,268|GEN ==> 14, 62.000000, 56.000000, -34.750000
2016-08-19 21:46:55,695|GEN ==> 15, 62.000000, 58.000000, -2.000000

[download]
The difference between the best and average fitness shows the GA is converging, and it may be a good time to stop.

In reply to Re: Instrumenting a genetic algorithm. by Arunbear
in thread Instrumenting a genetic algorithm. by BrowserUk

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post, it's "PerlMonks-approved HTML":


  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.