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Python | Pandas PeriodIndex.dayofyear

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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 PeriodIndex.dayofyear attribute returns an Index object. The Index contains ordinal day of the year for each element in the given PeriodIndex object.

Syntax : PeriodIndex.dayofyear
Parameters : None
Return : Index 
 

Example #1: Use PeriodIndex.dayofyear attribute to find the value of the ordinal days of the year for each element in the given PeriodIndex object. 

Python3




# importing pandas as pd
import pandas as pd
 
# Create the PeriodIndex object
pidx = pd.PeriodIndex(start ='2005-12-21',
             end ='2005-12-29', freq ='D')
 
# Print the PeriodIndex object
print(pidx)


Output : 

Now we will use the PeriodIndex.dayofyear attribute to find the value of ordinal days of the year for each element in the given object. 

Python3




# return the value of ordinal
# days of the year
pidx.dayofyear


Output : 

As we can see in the output, the PeriodIndex.dayofyear attribute has returned an Index object containing the value of ordinal days of the year for each element in the given PeriodIndex object.

Example #2: Use PeriodIndex.dayofyear attribute to find the value of the ordinal days of the year for each element in the given PeriodIndex object. 

Python3




# importing pandas as pd
import pandas as pd
 
# Create the PeriodIndex object
pidx = pd.PeriodIndex(start ='2011-03-14 ',
              end ='2011-03-21', freq ='D')
 
# Print the PeriodIndex object
print(pidx)


Output : 

Now we will use the PeriodIndex.dayofyear attribute to find the value of ordinal days of the year for each element in the given object.

Python3




# return the value of ordinal
# days of the year
pidx.dayofyear


Output : 

As we can see in the output, the PeriodIndex.dayofyear attribute has returned an Index object containing the value of ordinal days of the year for each element in the given PeriodIndex object.
 



Last Updated : 02 Sep, 2021
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