决策树-NBA比赛预测

最新推荐文章于 2023-03-03 09:36:30 发布

jiuniangyuanzikk

最新推荐文章于 2023-03-03 09:36:30 发布

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分类专栏：机器学习案例分析实战

本文链接：https://blog.youkuaiyun.com/jiuniangyuanzikk/article/details/74941494

该博客介绍了如何利用2017年NBA数据构建决策树模型进行比赛预测。作者首先获取数据，然后进行数据格式化处理，接着设计统计分析模型，并选择特征进行机器学习。尽管最终模型的准确率仅为54.7%，但展示了特征选取的重要性。

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思路：

1.获取NBA2017年的数据

2.格式化处理数据

3.设计统计分析模型

4.特征选取并进行机器学习

NBA的数据是自己在网上获取的csv数据，如下，可以直接保存成csv后缀的文本文件

Date,Start (ET),Visitor/Neutral,PTS,Home/Neutral,PTS,,,Notes
Tue Oct 25 2016,7:30 pm,New York Knicks,88,Cleveland Cavaliers,117,Box Score,,
Tue Oct 25 2016,10:30 pm,San Antonio Spurs,129,Golden State Warriors,100,Box Score,,
Tue Oct 25 2016,10:00 pm,Utah Jazz,104,Portland Trail Blazers,113,Box Score,,
Wed Oct 26 2016,7:30 pm,Brooklyn Nets,117,Boston Celtics,122,Box Score,,
Wed Oct 26 2016,7:00 pm,Dallas Mavericks,121,Indiana Pacers,130,Box Score,OT,
Wed Oct 26 2016,10:30 pm,Houston Rockets,114,Los Angeles Lakers,120,Box Score,,
Wed Oct 26 2016,8:00 pm,Minnesota Timberwolves,98,Memphis Grizzlies,102,Box Score,,
Wed Oct 26 2016,8:00 pm,Charlotte Hornets,107,Milwaukee Bucks,96,Box Score,,
Wed Oct 26 2016,8:00 pm,Denver Nuggets,107,New Orleans Pelicans,102,Box Score,,
Wed Oct 26 2016,7:00 pm,Miami Heat,108,Orlando Magic,96,Box Score,,
Wed Oct 26 2016,8:00 pm,Oklahoma City Thunder,103,Philadelphia 76ers,97,Box Score,,
Wed Oct 26 2016,10:00 pm,Sacramento Kings,113,Phoenix Suns,94,Box Score,,
Wed Oct 26 2016,7:30 pm,Detroit Pistons,91,Toronto Raptors,109,Box Score,,
Thu Oct 27 2016,7:30 pm,Washington Wizards,99,Atlanta Hawks,114,Box Score,,
Thu Oct 27 2016,8:00 pm,Boston Celtics,99,Chicago Bulls,105,Box Score,,
Thu Oct 27 2016,10:30 pm,Los Angeles Clippers,114,Portland Trail Blazers,106,Box Score,,
Thu Oct 27 2016,10:30 pm,San Antonio Spurs,102,Sacramento Kings,94,Box Score,,
Fri Oct 28 2016,7:30 pm,Indiana Pacers,94,Brooklyn Nets,103,Box Score,,
Fri Oct 28 2016,8:30 pm,Houston Rockets,106,Dallas Mavericks,98,Box Score,,
Fri Oct 28 2016,7:30 pm,Orlando Magic,82,Detroit Pistons,108,Box Score,,
Fri Oct 28 2016,8:00 pm,Charlotte Hornets,97,Miami Heat,91,Box Score,,
Fri Oct 28 2016,9:30 pm,Golden State Warriors,122,New Orleans Pelicans,114,Box Score,,
Fri Oct 28 2016,8:00 pm,Phoenix Suns,110,Oklahoma City Thunder,113,Box Score,OT,
Fri Oct 28 2016,7:00 pm,Cleveland Cavaliers,94,Toronto Raptors,91,Box Score,,
Fri Oct 28 2016,9:00 pm,Los Angeles Lakers,89,Utah Jazz,96,Box Score,,
Sat Oct 29 2016,8:00 pm,Indiana Pacers,101,Chicago Bulls,118,Box Score,,
Sat Oct 29 2016,7:00 pm,Boston Celtics,104,Charlotte Hornets,98,Box Score,,
Sat Oct 29 2016,7:30 pm,Orlando Magic,99,Cleveland Cavaliers,105,Box Score,,
Sat Oct 29 2016,9:00 pm,Portland Trail Blazers,115,Denver Nuggets,113,Box Score,OT,
Sat Oct 29 2016,8:00 pm,Brooklyn Nets,108,Milwaukee Bucks,110,Box Score,,
Sat Oct 29 2016,7:30 pm,Memphis Grizzlies,104,New York Knicks,111,Box Score,,
Sat Oct 29 2016,12:30 pm,Atlanta Hawks,104,Philadelphia 76ers,72,Box Score,,
Sat Oct 29 2016,10:30 pm,Minnesota Timberwolves,103,Sacramento Kings,106,Box Score,,
Sat Oct 29 2016,8:00 pm,New Orleans Pelicans,79,San Antonio Spurs,98,Box Score,,
Sun Oct 30 2016,6:00 pm,Milwaukee Bucks,83,Detroit Pistons,98,Box Score,,
Sun Oct 30 2016,8:00 pm,Dallas Mavericks,92,Houston Rockets,93,Box Score,,
Sun Oct 30 2016,4:30 pm,Utah Jazz,75,Los Angeles Clippers,88,Box Score,,
Sun Oct 30 2016,8:00 pm,Washington Wizards,103,Memphis Grizzlies,112,Box Score,OT,
Sun Oct 30 2016,6:00 pm,San Antonio Spurs,106,Miami Heat,99,Box Score,,
Sun Oct 30 2016,7:00 pm,Los Angeles Lakers,96,Oklahoma City Thunder,113,Box Score,,
Sun Oct 30 2016,6:00 pm,Golden State Warriors,106,Phoenix Suns,100,Box Score,,
Mon Oct 31 2016,7:30 pm,Sacramento Kings,95,Atlanta Hawks,106,Box Score,,
Mon Oct 31 2016,7:30 pm,Chicago Bulls,118,Brooklyn Nets,88,Box Score,,
Mon Oct 31 2016,10:30 pm,Phoenix Suns,98,Los Angeles Clippers,116,Box Score,,
Mon Oct 31 2016,7:30 pm,Denver Nuggets,102,Toronto Raptors,105,Box Score,,
Tue Nov 1 2016,6:00 pm,Houston Rockets,120,Cleveland Cavaliers,128,Box Score,,
Tue Nov 1 2016,7:30 pm,New York Knicks,89,Detroit Pistons,102,Box Score,,
Tue Nov 1 2016,7:00 pm,Los Angeles Lakers,108,Indiana Pacers,115,Box Score,,
Tue Nov 1 2016,7:30 pm,Sacramento Kings,96,Miami Heat,108,Box Score,OT,
Tue Nov 1 2016,8:00 pm,Memphis Grizzlies,80,Minnesota Timberwolves,116,Box Score,,
Tue Nov 1 2016,8:00 pm,Milwaukee Bucks,117,New Orleans Pelicans,113,Box Score,,
Tue Nov 1 2016,7:00 pm,Orlando Magic,103,Philadelphia 76ers,101,Box Score,,
Tue Nov 1 2016,10:00 pm,Golden State Warriors,127,Portland Trail Blazers,104,Box Score,,
Tue Nov 1 2016,8:30 pm,Utah Jazz,106,San Antonio Spurs,91,Box Score,,
Wed Nov 2 2016,7:

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