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Python | Pandas Series.dt.dayofyear

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Series.dt can be used to access series values ​​as datetimelike and return multiple properties. Series.dt.dayofyear Pandas Series.dt.dayofyear returns the ordinal day of the year in the underlying data based on date and time in this series object.

Syntax: Series.dt.dayofyear

Parameter: None

Returns: numpy array

Example # 1: Use the Series.dt.dayofyear attribute to return the ordinal day of the year in the underlying data of this Series object.

# import pandas as pd

import pandas as pd

 
# Create series

sr = pd.Series ([  ’2012-10-21 09: 30’ , ’ 2019-7-18 12: 30’ , ’2008-02-2 10:30’ ,

’2010-4-22 09:25’ , ’2019-11-8 02:22’ ])

  
# Create index

idx = [ ’Day 1’ , ’Day 2’ , ’ Day 3’ , ’Day 4’ , ’ Day 5 ’ ]

  
#est Browse index

sr.index = idx

 
# Convert baseline data to date and time

sr = pd.to_datetime (sr)

 
# Print series

print (sr)

Output:

Now we we will use the Series.dt.dayofyear attribute to return the ordinal day of the year in the data based on the date and time in the given series object.

#ver day of the year

result = sr. dt.dayofyear

 
# print result

print (result)

Output:

As we can see from the output, the Series.dt.dayofyear attribute successfully accessed and returned the day of the year in the underlying data of this series object.

Example # 2: Use the Series.dt.dayofyear attribute to return the ordinal day of the year in the underlying data of this Series object.

# import pandas as pd

import pandas as pd

 
# Series creation

sr = pd.Series (pd.date_range ( ’2012-12-12 12: 12’

periods = 5 , freq = ’M’ ))

  
# Create index

idx = [ ’ Day 1’ , ’Day 2’ , ’Day 3’ , ’Day 4’ , ’ Day 5’ ]

 
# set index

sr.index = idx

 
# Print series

print (sr)

Output:

Now we will use the attribute Series.dt.dayofyear to return the ordinal day of the year in the data based on the date and time in a given series object.

# return the day of the year

result = sr.dt.dayofyear

 
# print the result

print (result)

Output:

As we can see from the output, the Series. dt.dayofyear successfully accessed and returned the day of the year in the underlying data of this series object.

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