To do three-way joining multiple dataframes on columns with Python Pandas, we call the
For instance, we write
import pandas as pd from functools import reduce dfs = [df0, df1, df2, dfN] df_final = reduce(lambda left,right: pd.merge(left,right,on='name'), dfs)
reduce with a lanbda that merges 2 data frames in the
dfs list with the
We merge them on the
name column values.
And we set the initial value of