regex - 如何从数据框中删除一起出现的数字和字符串

Question

如何从数据框中删除字母词

Text       Association
  12-43       KG,JK
  12g         MG,JK
  Main Road   
  12-45        JK,TG
  f12 
  Parallel     Road 

当前代码

matrix = matrix[['Text', 'Association']]         
        import numpy as np
        conditions = [

           matrix ['Text'].isnumeric(),
        matrix ['Text'].str.len() == 1
        ]
        matrix  = matrix [~np.logical_or.reduce(conditions)]

期望的输出

Text       Association
Main         Road
Parallel      Road 

Answer 1

我认为你需要改变:

matrix ['Text'].isnumeric(),

到str.contains使用正则表达式 \d 匹配 number:

matrix ['Text'].str.contains('\d'),

一起:

matrix = matrix[['Text', 'Association']]  

matrix['Text'] = matrix['Text'].astype(str)       

conditions = [

    matrix ['Text'].str.contains('\d'),
    matrix ['Text'].str.len() == 1
             ]
matrix  = matrix [~np.logical_or.reduce(conditions)]

print (matrix)
       Text Association
2      Main        Road
5  Parallel        Road