Consult, how to use a dataframe for another assignment, how to check for duplicate data in the process of assignment?

CodePudding user response:

Your question is a bit wider, I also don't know how to answer, just answer one is:

 the from pandas import DataFrame 
The import pandas as pd 
Df1=DataFrame ({' key ':' a ', 'a', 'b', 'b'], 
"Data" : the range (4)}) 
Df2=DataFrame ({' key ':' a ', 'b', 'd'], 
"Data" : the range (3)}) 
Print (df1) 
Print (df2) 
Df=pd concat ([df1, df2]) 
Df. Drop_duplicates (inplace=True) 
Print (df) 

The key data
0 a 0
1 a, 1
2 b 2
3 b 3
The key data
0 a 0
1 b 1
2 d 2
The key data
0 a 0
1 a, 1
2 b 2
3 b 3
1 b 1
2 d 2