Statistics – statistical structure module

This module have the class which is reponsible to keep statistics of each generation. This class is used by the adapters and other statistics dump objects.

class Statistics.Statistics

Statistics Class - A class bean-like to store the statistics

The statistics hold by this class are:

rawMax, rawMin, rawAve

Maximum, minimum and average of raw scores

rawDev, rawVar

Standard Deviation and Variance of raw scores

fitMax, fitMin, fitAve

Maximum, mininum and average of fitness scores

rawTot, fitTot

The total (sum) of raw scores and the fitness scores

Example:

>>> stats = ga_engine.getStatistics()
>>> st["rawMax"]
10.2

asTuple()

Returns the stats as a python tuple

clear()

Set all statistics to zero

clone()

Instantiate a new Statistic class with the same contents

copy(obj)

Copy the values to the obj variable of the same class

Parameter:obj – the Statistics object destination

items()

Return a tuple (name, value) for all stored statistics