Python | Pandas tseries.offsets.DateOffset.isAnchored
Last Updated :
10 Oct, 2022
Dateoffsets are a standard kind of date increment used for a date range in Pandas. It works exactly like relativedelta in terms of the keyword args we pass in. DateOffsets work as follows, each offset specify a set of dates that conform to the DateOffset. For example, Bday defines this set to be the set of dates that are weekdays (M-F). DateOffsets can be created to move dates forward a given number of valid dates. For example, Bday(2) can be added to a date to move it two business days forward. If the date does not start on a valid date, first it is moved to a valid date and then offset is created. Pandas tseries.offsets.DateOffset.isAnchored() function returns a boolean value. It returns True if the given DateOffset is Anchored else it return False.
Syntax: pandas.tseries.offsets.DateOffset.isAnchored() Parameter : None Returns : boolean
Example #1: Use pandas.tseries.offsets.DateOffset.isAnchored() function to check if the given DateOffset is anchored or not.
Python3
import pandas as pd
from pandas.tseries.frequencies import to_offset
ts = pd.Timestamp( '2019-10-10 07:15:11' )
do = to_offset(freq = '2D' )
print (ts)
print (do)
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Output : Now we will add the dateoffset to the given timestamp object to increment the datetime value. We will also check if the given DateOffset is anchored or not.
Python3
new_timestamp = ts + do
print (new_timestamp)
print (do.isAnchored())
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Output : As we can see in the output, the function has returned False indicating the given DateOffset is not anchored. Example #2: Use pandas.tseries.offsets.DateOffset.isAnchored() function to check if the given DateOffset is anchored or not.
Python3
import pandas as pd
from pandas.tseries.frequencies import to_offset
ts = pd.Timestamp( '2019-10-10 07:15:11' )
do = to_offset(freq = 'W-SUN' )
print (ts)
print (do)
|
Output : Now we will add the dateoffset to the given timestamp object to increment the datetime value. We will also check if the given DateOffset is anchored or not.
Python3
new_timestamp = ts + do
print (new_timestamp)
print (do.isAnchored())
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Output : As we can see in the output, the function has returned True indicating the given DateOffset is anchored.
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