In this article, I will explain how to combine two pandas DataFrames using functions likepandas.concat()andDataFrame.append()with examples. Key Points – Use thepd.concat()function to combine DataFrames vertically or horizontally based on the axis parameter. Use theignore_indexparameter to reset ...
data_merge1 = reduce(lambda left, right: # Merge three pandas DataFrames pd.merge(left , right, on = ["ID"]), [data1, data2, data3]) print(data_merge1) # Print merged DataFrameThe output of the previous Python syntax is visualized in Table 4. We have horizontally concatenated our...
The following examples show how to use these row names to combine our two DataFrames horizontally. Example 1: Merge pandas DataFrames based on Index Using Inner Join Example 1 shows how to use aninner jointo append the columns of our two data sets. ...