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Python | Pandas MultiIndex.nlevels

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  • Last Updated : 24 Dec, 2018
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Python is a great language for doing data analysis, primarily because of the fantastic ecosystem of data-centric python packages. Pandas is one of those packages and makes importing and analyzing data much easier.

Pandas MultiIndex.nlevels attribute returns the integer number of levels in the MultiIndex.

Syntax: MultiIndex.nlevels

Example #1: Use MultiIndex.nlevels attribute to find the number of levels in the MultiIndex.




# importing pandas as pd
import pandas as pd
  
# Creating the array
array = [[1, 2, 3], ['Sharon', 'Nick', 'Bailey']]
  
# Print the array
print(array)

Output :

Now let’s create the MultiIndex using this array




# Creating the MultiIndex
midx = pd.MultiIndex.from_arrays(array, names =('Number', 'Names'))
  
# Print the MultiIndex
print(midx)

Output :

Now we will find the number of levels in the MultiIndex.




# Print the number of the levels in MultiIndex
midx.nlevels

Output :

As we can see in the output, there are 2 levels in the midx MultiIndex.
 
Example #2: Use MultiIndex.nlevels attribute to find the number of levels in the given MultiIndex.




# importing pandas as pd
import pandas as pd
  
# Creating the array
array = [[1, 2, 3], ['Sharon', 'Nick', 'Bailey'],
            ['Doctor', 'Scientist', 'Physicist']]
  
# Print the array
print(array)

Output :

Now let’s create the MultiIndex using this array




# Creating the MultiIndex
midx = pd.MultiIndex.from_arrays(array, 
          names =('Ranking', 'Names', 'Profession'))
  
# Print the MultiIndex
print(midx)

Output :

Now we will find the number of levels in the MultiIndex.




# Print the number of level in MultiIndex
midx.nlevels

Output :

As we can see in the output, midx MultiIndex has 3 levels.


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