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joining pandas dataframes

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TELLI Hichem answered on April 25, 2020 Popularity 9/10 Helpfulness 4/10

answer joining pandas dataframes

related join to dataframes pandas

related pandas join dataframe

joining pandas dataframes

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df1 = pd.DataFrame(
    {
        "A": ["A0", "A1", "A2", "A3"],
        "B": ["B0", "B1", "B2", "B3"],
    }
)
df2 = pd.DataFrame(
    {
        "A": ["A4", "A5", "A6", "A7"],
        "B": ["B4", "B5", "B6", "B7"],
    }
)


df3 = pd.DataFrame(
    {
        "A": ["A8", "A9", "A10", "A11"],
        "B": ["B8", "B9", "B10", "B11"],
    }
)
frames = [df1, df2, df3]
result = pd.concat(frames, ignore_index=True)
"""
result = pd.DataFrame(
    {
        "A": ["A0", "A1", "A2", "A3", "A4", "A5", "A6", "A7", "A8", "A9", "A10", "A11"],
        "B": ["B0", "B1", "B2", "B3", "B4", "B5", "B6", "B7", "B8", "B9", "B10", "B11"],
    },
    index=[0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11],
)
"""

Popularity 9/10 Helpfulness 4/10 Language python

Source: pandas.pydata.org

Tags: pandas python

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Contributed on May 20 2022

TELLI Hichem

0 Answers Avg Quality 2/10

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join to dataframes pandas

Comment

>>> df.join(other.set_index('key'), on='key')
  key   A    B
0  K0  A0   B0
1  K1  A1   B1
2  K2  A2   B2
3  K3  A3  NaN
4  K4  A4  NaN
5  K5  A5  NaN

Popularity 10/10 Helpfulness 4/10 Language python

Source: pandas.pydata.org

Tags: join

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Contributed on Apr 25 2020

Lazy Lion

0 Answers Avg Quality 2/10

pandas join dataframe

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#https://pandas.pydata.org/docs/user_guide/merging.html

Popularity 10/10 Helpfulness 2/10 Language python

Source: Grepper

Tags: dataframe data

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Contributed on Apr 17 2021

Real Raccoon

0 Answers Avg Quality 2/10

joining pandas dataframes

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