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Python 数据清洗 9大方法,拿了就能用!!

  • 2026-02-18 05:14:10
Python 数据清洗 9大方法,拿了就能用!!

今天整理了Python的9大数据清洗的方法，熟练使用数据清洗能大大加快我们的工作效率，为了方便大家学习使用，同时附上了可以直接使用的代码段

9大清洗方法：
1. 处理缺失值（删除/填充）
2. 去除重复值
3. 处理异常值
4. 字符串清洗
5. 数据类型转换
6. 数据筛选与替换
7. 分箱处理
8. 数据合并与重塑
9. 保存清洗后的数据

本文来自网友投稿或网络内容，如有侵犯您的权益请联系我们删除，联系邮箱：wyl860211@qq.com 。

期刊图片复现|Python绘制数据在100次随机划分情况下模型的模型性能评估(包括R2、RMSE及标准差)散点图

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  1. CONNECT:[ UseTime:0.000938s ] mysql:host=127.0.0.1;port=3306;dbname=f_mffb;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.001376s ]
  3. SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.000668s ]
  4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.003430s ]
  5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.001390s ]
  6. SELECT * FROM `set` [ RunTime:0.007751s ]
  7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.001520s ]
  8. SELECT * FROM `article` WHERE `id` = 475616 LIMIT 1 [ RunTime:0.005343s ]
  9. UPDATE `article` SET `lasttime` = 1772253472 WHERE `id` = 475616 [ RunTime:0.009090s ]
  10. SELECT * FROM `fenlei` WHERE `id` = 66 LIMIT 1 [ RunTime:0.000825s ]
  11. SELECT * FROM `article` WHERE `id` < 475616 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.001129s ]
  12. SELECT * FROM `article` WHERE `id` > 475616 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.001058s ]
  13. SELECT * FROM `article` WHERE `id` < 475616 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.009547s ]
  14. SELECT * FROM `article` WHERE `id` < 475616 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.001819s ]
  15. SELECT * FROM `article` WHERE `id` < 475616 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.001961s ]
0.218638s