Pandas: Converting integer or float epoch times to Timestamp and DatetimeIndex
Pandas Time Series: Exercise-26 with Solution
Write a Pandas program to convert integer or float epoch times to Timestamp and DatetimeIndex.
Sample Solution:
Python Code :
import pandas as pd
dates1 = pd.to_datetime([1329806505, 129806505, 1249892905,
1249979305, 1250065705], unit='s')
print("Convert integer or float epoch times to Timestamp and DatetimeIndex upto second:")
print(dates1)
print("\nConvert integer or float epoch times to Timestamp and DatetimeIndex upto milisecond:")
dates2 = pd.to_datetime([1249720105100, 1249720105200, 1249720105300,
1249720105400, 1249720105500], unit='ms')
print(dates2)
Sample Output:
Convert integer or float epoch times to Timestamp and DatetimeIndex upto second: DatetimeIndex(['2012-02-21 06:41:45', '1974-02-11 09:21:45', '2009-08-10 08:28:25', '2009-08-11 08:28:25', '2009-08-12 08:28:25'], dtype='datetime64[ns]', freq=None) Convert integer or float epoch times to Timestamp and DatetimeIndex upto milisecond: DatetimeIndex(['2009-08-08 08:28:25.100000', '2009-08-08 08:28:25.200000', '2009-08-08 08:28:25.300000', '2009-08-08 08:28:25.400000', '2009-08-08 08:28:25.500000'], dtype='datetime64[ns]', freq=None)
Python Code Editor:
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Previous: Write a Pandas program to extract the day name from a specified date. Add 2 days and 1 business day with the specified date.
Next: Write a Pandas program to calculate one, two, three business day(s) from a specified date. Also find the next business month end from a specific date.
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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
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