This is where the problem comes in I can't seem to display the value from index 7.īasically I have worked out the fitness of each chromosome but need to select the parent population from the roulette wheel. (I am looping this 10 times, so 10 random numbers are generated.) If the random number is 70, the program should display the value from index number 4 which is 71. If the random number is 150, the program should display the value from index number 7 which is 152.

So the last index number 9 equals to 200 which is the maxmum number generated for the running total. Each one is added with the previous number. Second set of 10 random numbers ranging from 0 to maximum of running total. (Random numbers always different when program is ran)įirst set of 10 random numbers for running total ranging from 0 to maxrangeġ1, 31, 45, 65, 36, 25, 150, 187, 70, 200 Im trying to figure out how to display a number (parent population) from an array where it has been chosen by a random number (ranging 0 to maximum of running total). What I have done in addition to this is make the last number the total value (max range), so that a random number can only be generated from 0-to maximum of running total. The second set of 10 random numbers are to compare them to the running total (all of the running total numbers are the fittest ones of each chromosome) to find out the parent population. Then I generated 10 more random numbers which range from 0 to the maximum of running total. I generated 10 random numbers ranging from 0 to maxrange to find out the running total to work out the fitness of each chromosome.

Simple roulette wheel selection python