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一栏中基于数值的表选数据
原标题:Select data from a table based on the values in a column

我需要在一栏数据表中选择记录。

我的表象是这样。

ID col1 col2
1.  A.  Bsp

2.  B.  Ees.  

3.  Ç.  Eee 

4   D   Esp

5.  E.  Apt

6.  F.  Dpt

我需要问一下在垃圾后选择记录。

与此类似,

ID col1 col2

2.  B.  Ees.  

3.  Ç.  Eee 

4   D   Esp
问题回答

1. 请考虑一项研究第1栏和第2栏的功能,并将之退回到第1栏或第2栏。 使用该功能生成一栏和一栏,以查询数据范围。

def toKeep(a, b):
   if a == "B." and b == "Ees.":
        return 1
   elif a == "Ç." and b == "Eee":
        return 1
   else
        return 0

myTable["toKeep"] = [toKeep(a, b) for (a, b) 
    in zip(myTable["col1"], myTable["col2"])]

whatIwant = myTable.query("toKeep == 1")




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