的胜率对

看起来像条数据向标题:凯塞多先发时切尔西英超胜率52%,不先发仅25%。这个结论有传播价值,但需要一点背景和验证。

要点

如果你手头有比赛清单,我可以帮你跑一遍。没有数据也行,给你一个可复用的小脚本,你把CSV塞进去就出结果:

Python(输入需要一行一场比赛)

# file: calc_winrate.py
import csv, sys
from collections import Counter, defaultdict

def rate(c):
    total = c['W'] + c['D'] + c['L']
    return 0 if total==0 else c['W']/total

def main(path):
    pools = {'all': Counter(), 'start': Counter(), 'nostart': Counter()}
    strat = defaultdict(Counter)  # e.g. ('start','home') -> counter
    with open(path, newline='', encoding='utf-8') as f:
        for r in csv.DictReader(f):
            res = r['result'].strip().upper()[0]  # W/D/L
            started = 'start' if r['caicedo_started'].strip()=='1' else 'nostart'
            pools['all'][res]+=1; pools[started][res]+=1
            home = 'home' if r.get('home','').strip()=='1' else 'away'
            strat[(started, home)][res]+=1
            tier = None
            if r.get('opp_rank'):
                try:
                    rank = int(r['opp_rank'])
                    tier = 'top6' if rank<=6 else '7_12' if rank<=12 else '13_20'
                except: pass
            if tier: strat[(started, tier)][res]+=1

    print('Overall win rate:')
    for k in ['start','nostart']:
        print(f'  {k}: {rate(pools[k]):.3f}  (W/D/L={pools[k]["W"]}/{pools[k]["D"]}/{pools[k]["L"]})')
    print('\nBy home/away:')
    for k in [('start','home'),('start','away'),('nostart','home'),('nostart','away')]:
        c = strat[k]; total = c['W']+c['D']+c['L']
        print(f'  {k}: {rate(c):.3f}  n={total}')
    print('\nBy opponent tier (if opp_rank provided):')
    for tier in ['top6','7_12','13_20']:
        for s in ['start','nostart']:
            c = strat[(s,tier)]
            if sum(c.values()):
                print(f'  {s}-{tier}: {rate(c):.3f}  n={sum(c.values())}')

if __name__ == '__main__':
    if len(sys.argv)<2:
        print('Usage: python calc_winrate.py matches.csv'); sys.exit(1)
    main(sys.argv[1])

需要我:

6else

  1. 直接按你指定赛季核验这条“52% vs 25%”吗?
  2. 做一版图解/社媒海报用的要点和短评?
  3. 深一点的战术分析(马雷斯卡体系下的作用分解 + 数据侧证)?