How to unstack in python?

Recipe Objective

While operating with dataframes, we might have stacked array or in simpler terms, single column to denote all rows and one other column containing all values. We can unstack this type of dataframe using unstack function.

So this recipe is a short example on how to unstack in python. Let's get started.

Learn About the Application of ARCH and GARCH models in Real-World

Step 1 - Import the library

import pandas as pd import seaborn as sb

Let's pause and look at these imports. Pandas is generally used for performing mathematical operation and preferably over arrays. Seaborn is just for importing dataset for now.

Step 2 - Setup the Data

df = sb.load_dataset('tips') print(df)

Here we have simply imported tips dataset from seaborn library and printed it.

Step 3 - Stacking the dataframe

df_stacked = df.stack() print(df_stacked)

Here, we are stacked our array and finally printing it.

Step 4 - Unstacking the array

df_unstacked=df_stacked.unstack() print(df_unstacked)

Here, we are unstacking our array and finally printing it.

Step 5 - Let's look at our dataset now

Once we run the above code snippet, we will see:

Scroll down the ipython file to visualize the final output.