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整理了4个小时,Excel数据清洗教程,都在这里了!

  • 2026-03-30 13:48:28
整理了4个小时,Excel数据清洗教程,都在这里了!

很多同学刚开始都有这个疑问：数据清洗是在洗什么？该怎么洗？

数据清洗主要是删除原始数据中的无关数据，重复数据，平滑噪声数据，筛选掉与建模目的无关的数据，处理缺失值与异常值等。

~

这里列举了数据清洗中常用的6个Excel小技巧：

一、剔除重复值和缺失值

二、文本分列

三、从文本中提取数字

四、删除单元格多余空格

五、以文本形式存储的数字的转换

六、批量替换单元格内容

整理了Excel、数据分析资料包大合集👇

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 。

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  1. CONNECT:[ UseTime:0.000521s ] mysql:host=127.0.0.1;port=3306;dbname=h_sjds;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.000784s ]
  3. SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.000302s ]
  4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.000269s ]
  5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.000497s ]
  6. SELECT * FROM `set` [ RunTime:0.000236s ]
  7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.000559s ]
  8. SELECT * FROM `article` WHERE `id` = 467984 LIMIT 1 [ RunTime:0.001582s ]
  9. UPDATE `article` SET `lasttime` = 1775433467 WHERE `id` = 467984 [ RunTime:0.002949s ]
  10. SELECT * FROM `fenlei` WHERE `id` = 65 LIMIT 1 [ RunTime:0.000251s ]
  11. SELECT * FROM `article` WHERE `id` < 467984 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.000434s ]
  12. SELECT * FROM `article` WHERE `id` > 467984 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.001312s ]
  13. SELECT * FROM `article` WHERE `id` < 467984 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.000729s ]
  14. SELECT * FROM `article` WHERE `id` < 467984 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.003104s ]
  15. SELECT * FROM `article` WHERE `id` < 467984 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.003140s ]
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