add two dataframes pandas code example

Example 1: join on column pandas

# df1 as main df and use the feild from df2 and map it into df1

df1.merge(df2,on='columnName',how='left')

Example 2: combining 2 dataframes pandas

df_3 = pd.concat([df_1, df_2])

Example 3: combine two dataframe in pandas

# Stack the DataFrames on top of each other
vertical_stack = pd.concat([survey_sub, survey_sub_last10], axis=0)

# Place the DataFrames side by side
horizontal_stack = pd.concat([survey_sub, survey_sub_last10], axis=1)

Example 4: how to merge two dataframes

df_merge_col = pd.merge(df_row, df3, on='id')

df_merge_col

Example 5: how to merge two pandas dataframes on a column

import pandas as pd
T1 = pd.merge(T1, T2, on=T1.index, how='outer')

Example 6: merge two df

bigdata = pd.concat([data1, data2], ignore_index=True, sort=False)