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Creating a Pandas DataFrame using cartesian product of two DataFrames

schedule Aug 12, 2023
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Consider the following DataFrame:

import pandas as pd
df1 = pd.DataFrame({'A':[3,4],'B':[5,6]})
df1
A B
0 3 5
1 4 6

The other DataFrame is as follows:

df2 = pd.DataFrame({'C':[7,8]})
df2
C
0 7
1 8

To create a new DataFrame using the cartesian product of two DataFrames:

df1.merge(df2, how='cross')
A B C
0 3 5 7
1 3 5 8
2 4 6 7
3 4 6 8

Related

Pandas DataFrame | merge method
Pandas DataFrame.merge(~) method merges the source DataFrame with another DataFrame or a named Series.
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Published by Isshin Inada
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