我有两个pandas数据帧,df1和df2.我想创建一个数据帧df3,其中包含使用df1中的一列和df2中的一列的所有组合.无效率地执行此操作的伪代码将是这样的:
df3 = []
for i in df1:
for j in df2:
df3.append(i + j) # where i + j is the row with the combined cols from df1 and df2
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这是df1的格式:
df1_id other_data_1 other_data_2
1 0 1
2 1 5
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DF2:
df2_id other_data_3 other_data_4
1 0 1
3 2 2
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目标是为df3获取此输出:
df1_id df2_id other_data_1 other_data_2 other_data_3 other_data_4
1 1 0 1 0 1
1 3 0 1 2 2
2 1 1 5 0 1
2 3 1 5 …
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