Module: evolutionary algorithm

From SolutionSpaceTool

This module implements a evolutionary optimization concept. Its main function can be called either from console or from GUI(recommended). The function saves the solution files in standard folder for data.

package opt
imported by:

Functions

return generate_evolution_data(functions, parameters, file_info, time_check)

functions: dictionary with functions from datastructure

     essential keys:
      - "randomSolution" : returns a random representation
      - "changeSolution" : returns a function to change the given
                           representation
      - "costEvaluation" : returns the calculated costs for the
                           given representation
      - "recombineSolutions" : returns list of new representations created
                               from the two given representations

parameters : dictionary with algorithm parameters

     essential keys:
      - "parents" : number of parent individuals each generation
      - "children" : number of children individuals each generation
      - "generations" : number of generated generations

file_info : dictionary with information about the file names of the data files

     essential keys:
      - "trial_name" : name of trial given in GUI
      - "file_name_list" : additional information included in file name (can be empty string)

time_check: boolean

     True: estimates runtime with reduced samples
     False: full calculation with saving data to files

return:

     int : esimtated runtime (time_check == True)
     list : list of created files sorted by given cost criteria (time_check == False)
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