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Pandas: Create a time series using three months frequency

Pandas Time Series: Exercise-10 with Solution

Write a Pandas program to create a time series using three months frequency.

Sample Solution:

Python Code :

import pandas as pd
time_series = pd.date_range('1/1/2021', periods = 36, freq='3M')
print("Time series using three months frequency:")
print(time_series)

Sample Output:

Time series using three months frequency:
DatetimeIndex(['2021-01-31', '2021-04-30', '2021-07-31', '2021-10-31',
               '2022-01-31', '2022-04-30', '2022-07-31', '2022-10-31',
               '2023-01-31', '2023-04-30', '2023-07-31', '2023-10-31',
               '2024-01-31', '2024-04-30', '2024-07-31', '2024-10-31',
               '2025-01-31', '2025-04-30', '2025-07-31', '2025-10-31',
               '2026-01-31', '2026-04-30', '2026-07-31', '2026-10-31',
               '2027-01-31', '2027-04-30', '2027-07-31', '2027-10-31',
               '2028-01-31', '2028-04-30', '2028-07-31', '2028-10-31',
               '2029-01-31', '2029-04-30', '2029-07-31', '2029-10-31'],
              dtype='datetime64[ns]', freq='3M')

Python Code Editor:


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Previous: Write a Pandas program to create a whole month of dates in daily frequencies. Also find the maximum, minimum timestamp and indexs.
Next: Write a Pandas program to create a sequence of durations increasing by an hour.

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Python: Tips of the Day

Find current directory and file's directory:

To get the full path to the directory a Python file is contained in, write this in that file:

import os 
dir_path = os.path.dirname(os.path.realpath(__file__))

(Note that the incantation above won't work if you've already used os.chdir() to change your current working directory, since the value of the __file__ constant is relative to the current working directory and is not changed by an os.chdir() call.)

To get the current working directory use

import os
cwd = os.getcwd()

Documentation references for the modules, constants and functions used above:

  • The os and os.path modules.
  • The __file__ constant
  • os.path.realpath(path) (returns "the canonical path of the specified filename, eliminating any symbolic links encountered in the path")
  • os.path.dirname(path) (returns "the directory name of pathname path")
  • os.getcwd() (returns "a string representing the current working directory")
  • os.chdir(path) ("change the current working directory to path")

Ref: https://bit.ly/3fy0R6m