how to combine 2 dataframes in python code example
Example 1: merge two dataframes based on column
df_outer = pd.merge(df1, df2, on='id', how='outer')
df_outer
Example 2: combining 2 dataframes pandas
df_3 = pd.concat([df_1, df_2])
Example 3: combine two dataframe in pandas
vertical_stack = pd.concat([survey_sub, survey_sub_last10], axis=0)
horizontal_stack = pd.concat([survey_sub, survey_sub_last10], axis=1)
Example 4: Joins with another DataFrame
df.join(df2, df.name == df2.name, 'outer').select(
df.name, df2.height).collect()
df.join(df2, 'name', 'outer').select('name', 'height').collect()
cond = [df.name == df3.name, df.age == df3.age]
df.join(df3, cond, 'outer').select(df.name, df3.age).collect()
df.join(df2, 'name').select(df.name, df2.height).collect()
df.join(df4, ['name', 'age']).select(df.name, df.age).collect()
Example 5: how to join two dataframe in pandas based on two column
merged_df = left_df.merge(right_df, how='inner', left_on=["A", "B"], right_on=["A2","B2"])