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我有兩個dataframes:如何使用多列合併兩個數據框?
df_1 = pd.DataFrame(columns=["pointid","lat","lon"],data=[[1,41.792145,3.046884],[2,41.799834,3.051082],[3,41.813694,3.063463], [4,41.817673,3.067025]])
df_2 = pd.DataFrame(columns=["id","point_from","point_to"],
data=[[1,1,2],[2,1,3],[3,2,3]])
我想,爲了得到一個新的數據框df_3
有以下的列(1行的例子)來合併它們:
id point_from point_to lat_from lon_from lat_to lon_to
1 1 2 41.792145 3.046884 41.799834 3.051082
我該怎麼做?