I've made a mess of my VI and I'm lost

Question

Anybody that could help would be helping my immensely.
I have incorporated a new subVI into this simple genetic algorithm VI. The problem is that originally, initially an array was formed. Now a cluster is formed and it has messed up the rest of my VI. as the data types are different.
I have included the VI, can anyone suggest how I would fix it? The broken wires show where (I am assuming) the data types are incompatible and the system breaks down. Also, the aim of the "calculate fitness VI" was to sum all of the values in the array and return the overall value as an evaluation function. Do I have this part set-up correctly?
Thanks
Alan Homer
P.S. Genetic Algorithm is the main overall VI, the other VI's are subVIs in the main VI.
Attachments:
GebeticAlgorithmV3 Modified.llb ‏393 KB

Answer 1

Thanks for the help mate but I think there still maybe some misunderstanding as to what I am trying to achieve. I have worked through the GA and for a while I thought it was working but after a closer look I realized it is not achieving its aims. I have worked through the GA from start to finish and mentioned what I expect to see at each point.
1) On the front panel, the user inputs a vlaue for the "Number of Samples" and "Length" which correspond to the number of arrays wanted and the length of these arrays. For a simple case scenario I tried to run Number of Samples = 5, and Length =2.
2) These values then pass into the "N Random Arrays VI" and 5 arrays of length of 2 should be created and filled with floating point numbers randomly selected between 0 and 1. i.e. an example of the expected output here would be [0.12, 0.45], [0.98, 0.65], [0.45, 0.32], [0.76, 0.74], and [0.01, 0.67]. (These have just been made up by me to show what I want to be produced).
3) These N arrays should then pass into the  "Calculate Fitness.vi" which is presently set to calculate "4 x Total sum of array elements" in each array, therefore all 5 arrays would be assigned a fitness value (i.e.for my example arrays above the respective fitness values would be 2.28, 6.52, 3.08, 6 and 2.72.
4) Ignoring the statistics route for now, each of these 5 arrays should pass into the "RouletteWheelSelectionSmallArray.vi" where these "parent" arrays are paired up and undergo a crossover procedure dependant on their fitness values. The higher the fitness value the more likely they are to be involved in the crossover procedure. They then undergo a 0.1% chance of a random mutation at a random point on an array. At this point at the end of this subVI there should still be a population of 5 arrays consisting of 2 floating point values, but which are different to the initial population.
5) There is then a feedback loop that returns these 5 new arrays to the "Calculate Fitness VI" and the process repeats until the average fitness is optimized.
In testing the GA I placed a write to spreadsheet subVI at the enf of (4) so in theory I should be prompted in each generation (one single loop) for 5 file names in which in each should be placed an array of 2 floating point values between 0 and 1. Instead I get the results:
Generation 0 (the first loop using the 5 initial arrays in theory): one file that contains the values 0.536 and 0.462 (exactly what I want but I want 5 of these in each generation not just one) and I was prompted for a second filename in generation 0 and inside it returned the values (4,3,4,4,3) that look to be like the sample numbers 5 times? (not what is required).
In generation2 I was prompted for another filename that returned the value 72, and another filename that returned the value 288 (72 x 4). By this point I think the VI is just looping an individual fitness value and multiplying it by 4 instead of assigned 5 arrays of 2 values a fitness function each. Then in following generations the same proces occurs, i.e. the gen 4 values were 1152 (288 x 4) and 4608 (1152 x 4).
Can anyone help put this procedure correct so that the VI does what it should? I have tried following the process through step by step and I can't see why it's not working.
Thanks
I was prompted for nothing
Message Edited by alanhomer on 03-30-2006 03:25 AM
Attachments:
Copy of Simple GA Alan.llb ‏414 KB