Golang遗传算法中的轮盘选择

sumfitnessScorefitnessScoresummath/randspin_wheel := rand.sum

package main

import(
    "fmt"
    "time"
    "math/rand"
)

func rouletteWheel(fitnessScore []float64) []float64{
    sum := 0.0
    for i := 0; i < len(fitnessScore); i++ {
        sum += fitnessScore[i]
    }

    rand.Seed(time.Now().UnixNano())
    spin_wheel := rand.sum
    partial_sum := 0.0
    for i := 0; i < len(fitnessScore); i++{
        partial_sum += fitnessScore[i]
        if(partial_sum >= spin_wheel){
            return fitnessScore
        }
    }
    return fitnessScore
}

func main(){
    fitnessScore := []float64{0.1, 0.2, 0.3, 0.4}
    fmt.Println(rouletteWheel(fitnessScore))
}