#!/usr/bin/env python
# coding: utf-8

# ![Pandas Tutorial | Hedaro >](https://www.dropbox.com/s/220ncn0o5danuey/pandas-ipython-tutorials-hedaro.jpg?dl=1)
# # Lesson 5

# > We will be taking a brief look at the ***stack*** and ***unstack*** functions. 

# In[1]:


# Import libraries
import pandas as pd
import sys


# In[2]:


print('Python version ' + sys.version)
print('Pandas version: ' + pd.__version__)


# In[3]:


# Our small data set
d = {'one':[1,1],'two':[2,2]}
i = ['a','b']

# Create dataframe
df = pd.DataFrame(data = d, index = i)
df


# In[4]:


df.index


# In[5]:


# Bring the columns and place them in the index
stack = df.stack()
stack


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# The index now includes the column names
stack.index


# In[7]:


unstack = df.unstack()
unstack


# In[8]:


unstack.index


# We can also flip the column names with the index using the ***T*** (transpose) function.

# In[9]:


transpose = df.T
transpose


# In[10]:


transpose.index


# <p class="text-muted">This tutorial was created by <a href="http://www.hedaro.com" target="_blank"><strong>HEDARO</strong></a></p>