aleague_simulator.py

from __future__ import division

import random


def getHomeScore():
    score = 0
    num = random.random()


    #using distribution of goals from top 4 Euro leagues 2000-2013
    if num < .2256:
        score = 0
    elif num < 0.5593:
        score = 1
    elif num < 0.8082:
        score = 2
    elif num < 0.9316:
        score = 3
    elif num < 0.9788:
        score = 4
    elif num < 0.9942:
        score = 5
    elif num < 0.9988:
        score = 6
    else:
        score = 7

    return score

def getAwayScore():
    score = 0
    num = random.random()

    #using distribution of goals from top 4 Euro leagues 2000-2013
    if num < 0.3554:
        score = 0
    elif num < 0.7149:
        score = 1
    elif num < 0.9022:
        score = 2
    elif num < 0.9722:
        score = 3
    elif num < 0.9936:
        score = 4
    elif num < 0.9984:
        score = 5
    elif num < 0.9998:
        score = 6
    else:
        score = 7

    return score


inPlayoffsPointsCount = [0] * 56
totalPointsCount = [0] * 56


for i in range(10000000):

    teams =[[1,"Adelaide"], [2, "Brisbane"], [3, "CCM"], [4, "Melbourne City"], [5, "Melbourne Victory"], [6, "Newcastle"],[7, "Perth"], [8, "Sydney FC"], [9, "Wellington"],[10, "Western Sydney"]]

    matches = [[2,10], [9,1], [4,8], [3,5], [7,6],
                         [1,4], [8,9], [2,5], [7,3], [6,10],
                         [4,2], [3,8], [10,1], [9,7], [5,6],
                         [5,10], [6,7], [2,8], [1,3], [4,9],
                         [10,3], [9,5], [8,1], [2,6], [7,4],
                         [4, 1], [3,6], [5,2], [9,10], [8,7]]


    points = [36, 35, 12, 32, 30, 26, 28, 30, 22, 38]
    goal_diff  = [8, 3, -24, 13, 4, -10, 2, 4, -9, 8]


    for match in matches:
        team1 = match[0]
        team2 = match[1] 

        score1 = getHomeScore()
        score2 = getAwayScore()

        if score1 == score2:
            points[team1-1] += 1
            points[team2-1] += 1
        elif score1 > score2:
            points[team1-1] += 3
            points[team2-1] += 0
        elif score1 < score2:
            points[team1-1] += 0
            points[team2-1] += 3
        
        goal_diff[team1-1] += score1-score2
        goal_diff[team2-1] += score2-score1

    sortedPoints = [i[0]+1 for i in sorted(enumerate(points), key=lambda x:x[1])][::-1]

    nixFInalPos =  sortedPoints.index(2)

    totalPointsCount[points[8]] +=1

    if(nixFInalPos <= 1):
        inPlayoffsPointsCount[points[8]] += 1

for i in range(0, 56):
    percentage = 0
    if(totalPointsCount[i] > 0):
        percentage = (inPlayoffsPointsCount[i]/totalPointsCount[i]) * 100
    #print str.format("{} points: {}/{}", i, inPlayoffsPointsCount[i], totalPointsCount[i])
    print str.format("{} points: {:.2f}%", i, percentage)