随机森林实战！对于2022-23赛季足球球员位置的判断

前言

对于场上球员位置，大伙看比赛也许就能直观看出来，再不济通过看赛前赛后数据展板也可以，那么意义在于什么呢？ 

很简单，有时候球员自己也不清楚什么是适合他的，可能因为青年队时教练一次安排，从此一生便蹉跎在这个位置上。因此本文的判断主要是针对于那些预测错的---那样意味着可能另有其他位置更适合此球员，比如莱万多夫斯基，青年队是一名后卫，打着打着变成了九五至尊的锋霸。这样的栗子不多，但是如果有一种能通过场上表现给球员分配位置的软件，也许我们能挖掘更多的足球人才。

数据来源：

2024-2025 Big 5 European Leagues Stats (players) | FBref.com

Kaggle亦有此数据收录。

2022-2023 Football Player Stats (kaggle.com)

数据格式

csv格式，以;分号分割。共有以下数据栏

• Rk : Rank                             
• Player : Player's name
• Nation : Player's nation
• Pos : Position
• Squad : Squad’s name
• Comp : League that squat occupies
• Age : Player's age
• Born : Year of birth
• MP : Matches played
• Starts : Matches started
• Min : Minutes played
• 90s : Minutes played divided by 90
• Goals : Goals scored or allowed
• Shots : Shots total (Does not include penalty kicks) 射门数
• SoT : Shots on target (Does not include penalty kicks)     射正数
• SoT% : Shots on target percentage (Does not include penalty kicks) 射正百分比
• G/Sh : Goals per shot  每次射门进球期望值 越高表示这人越厉害
• G/SoT : Goals per shot on target (Does not include penalty kicks) 每次射正进球期望值
• ShoDist : Average distance, in yards, from goal of all shots taken (Does not include penalty kicks)  平均射门离球门距离
• ShoFK : Shots from free kicks 来自任意球射门
• ShoPK : Penalty kicks made 造点球数量
• PKatt : Penalty kicks attempted 参与点球
• PasTotCmp : Passes completed 
• PasTotAtt : Passes attempted 
• PasTotCmp% : Pass completion percentage 成功传球率
• PasTotDist : Total distance, in yards, that completed passes have traveled in any direction
• PasTotPrgDist : Total distance, in yards, that completed passes have traveled towards the opponent's goal
• PasShoCmp : Passes completed (Passes between 5 and 15 yards)
• PasShoAtt : Passes attempted (Passes between 5 and 15 yards)
• PasShoCmp% : Pass completion percentage (Passes between 5 and 15 yards)
• PasMedCmp : Passes completed (Passes between 15 and 30 yards)
• PasMedAtt : Passes attempted (Passes between 15 and 30 yards)
• PasMedCmp% : Pass completion percentage (Passes between 15 and 30 yards)
• PasLonCmp : Passes completed (Passes longer than 30 yards)
• PasLonAtt : Passes attempted (Passes longer than 30 yards)
• PasLonCmp% : Pass completion percentage (Passes longer than 30 yards)
• Assists : Assists 助攻
• PasAss : Passes that directly lead to a shot (assisted shots)
• Pas3rd : Completed passes that enter the 1/3 of the pitch closest to the goal 倒数第三传
• PPA : Completed passes into the 18-yard box 禁区内传球数
• CrsPA : Completed crosses into the 18-yard box
• PasProg : Completed passes that move the ball towards the opponent's goal at least 10 yards from its furthest point in the last six passes, or any completed pass into the penalty area
• PasAtt : Passes attempted
• PasLive