合併2個dataframes使用<>狀態

Question

我有兩個DataFrame對象：

• df1：columns = [a, b, c]
• df2：columns = [d, e]

我想用的sql在等效與df2合併df1pandas：

select * from df1 inner join df2 on df1.b=df2.e and df1.b <> df2.d and df1.c = 0 

Answer 1

的以下步驟順序應該讓你有：

df1 = df[df1.c==0] 
merged = df1.merge(df2, left_on='b', right_on='e') 
merge = merged[merged.b != merged.d]