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Python Articles
Page 126 of 855
Python Pandas - How to perform floor operation on the DateTimeIndex with seconds frequency
The DateTimeIndex.floor() method performs a floor operation on datetime values, rounding down to the nearest specified frequency. For seconds frequency, use 'S' as the frequency parameter. Creating a DateTimeIndex First, let's create a DateTimeIndex with microsecond precision ? import pandas as pd # Create DateTimeIndex with 40-second intervals datetimeindex = pd.date_range('2021-10-18 07:20:32.261811624', periods=5, tz='Australia/Adelaide', freq='40S') print("DateTimeIndex...", datetimeindex) DateTimeIndex... DatetimeIndex(['2021-10-18 07:20:32.261811624+10:30', ...
Read MorePython Pandas - How to perform floor operation on the DateTimeIndex with minutely frequency
To perform floor operation on the DateTimeIndex with minutely frequency, use the DateTimeIndex.floor() method. For minutely frequency, use the freq parameter with value 'T'. What is Floor Operation? The floor operation rounds down datetime values to the nearest specified frequency boundary. For minute frequency, it rounds down to the beginning of the minute (sets seconds and microseconds to zero). Syntax DateTimeIndex.floor(freq) Parameters: freq: Frequency string. Use 'T' or 'min' for minutely frequency Creating DateTimeIndex Let's create a DateTimeIndex with seconds frequency to demonstrate the floor operation ? ...
Read MorePython Pandas - How to perform floor operation on the DateTimeIndex with hourly frequency
To perform floor operation on the DateTimeIndex with hourly frequency, use the DateTimeIndex.floor() method. The floor operation rounds down datetime values to the nearest specified frequency boundary. What is Floor Operation? The floor operation rounds down datetime values to the beginning of the specified time period. For hourly frequency, it rounds down to the start of the hour (minutes and seconds become 00:00). Syntax DateTimeIndex.floor(freq) Parameters freq − Frequency string like 'H' for hourly, 'D' for daily, 'T' for minutes Example Let's create a DateTimeIndex and perform floor ...
Read MorePython Pandas - How to Round the DateTimeIndex with microseconds frequency
To round the DateTimeIndex with microseconds frequency, use the DateTimeIndex.round() method. For microseconds frequency, use the freq parameter with value 'us'. Creating a DateTimeIndex First, let's create a DateTimeIndex with nanosecond precision timestamps ? import pandas as pd # Create DatetimeIndex with period 5 and frequency as seconds # timezone is Australia/Adelaide datetimeindex = pd.date_range('2021-09-29 07:20:32.261811624', periods=5, tz='Australia/Adelaide', freq='28s') print("Original DateTimeIndex:") print(datetimeindex) print("DateTimeIndex frequency:") print(datetimeindex.freq) ...
Read MorePython Pandas - Round a DateTimeIndex with frequency as multiples of a single unit
To round a DateTimeIndex with frequency as multiples of a single unit, use the DateTimeIndex.round() method. The freq parameter accepts multipliers like '10T' for 10 minutes or '30S' for 30 seconds. Syntax DateTimeIndex.round(freq) Where freq is the frequency string with optional multiplier (e.g., '10T', '5H', '30S'). Creating a DateTimeIndex First, let's create a DateTimeIndex with precise timestamps ? import pandas as pd # DatetimeIndex with period 5 and frequency as H i.e. hours # timezone is Australia/Adelaide datetimeindex = pd.date_range('2021-09-29 07:20:32.261811624', periods=5, ...
Read MorePython Pandas - How to Round the DateTimeIndex with milliseconds frequency
To round the DateTimeIndex with milliseconds frequency, use the DateTimeIndex.round() method. For milliseconds frequency, use the freq parameter with value 'ms'. Creating a DateTimeIndex First, import pandas and create a DateTimeIndex with nanosecond precision ? import pandas as pd # Create DatetimeIndex with period 5 and frequency as 28 seconds # timezone is Australia/Adelaide datetimeindex = pd.date_range('2021-09-29 07:20:32.261811624', periods=5, tz='Australia/Adelaide', freq='28s') print("Original DateTimeIndex:") print(datetimeindex) ...
Read MorePython Pandas - How to Round the DateTimeIndex with seconds frequency
To round the DateTimeIndex with seconds frequency, use the DateTimeIndex.round() method. For seconds frequency, use the freq parameter with value 'S'. Creating a DateTimeIndex First, let's create a DateTimeIndex with nanosecond precision ? import pandas as pd # Create DatetimeIndex with period 5 and frequency as 28 seconds # timezone is Australia/Adelaide datetimeindex = pd.date_range('2021-09-29 07:20:32.261811624', periods=5, tz='Australia/Adelaide', freq='28s') print("Original DateTimeIndex...") print(datetimeindex) print("DateTimeIndex frequency:", datetimeindex.freq) ...
Read MorePython Pandas - Extract the day from the DateTimeIndex with specific time series frequency
To extract the day from the DateTimeIndex with specific time series frequency, use the DateTimeIndex.day property. This property returns the day component from each datetime in the index as integers. Syntax DateTimeIndex.day This property returns an Int64Index containing the day values (1-31) for each datetime in the DateTimeIndex. Creating a DateTimeIndex First, let's create a DateTimeIndex with daily frequency ? import pandas as pd # Create DatetimeIndex with period 6 and frequency as D (daily) # Using Australia/Sydney timezone datetimeindex = pd.date_range('2021-10-20 02:35:55', periods=6, tz='Australia/Sydney', freq='D') print("DateTimeIndex...") print(datetimeindex) ...
Read MorePython Pandas - Extract month number from the DateTimeIndex with specific time series frequency
To extract month numbers from a DateTimeIndex with specific time series frequency, use the DateTimeIndex.month property. This returns integer values from 1 to 12 representing January through December. Creating a DateTimeIndex First, let's create a DateTimeIndex with monthly frequency ? import pandas as pd # DateTimeIndex with period 6 and frequency as M (month end) # Timezone is Australia/Sydney datetimeindex = pd.date_range('2021-09-24 02:35:55', periods=6, tz='Australia/Sydney', freq='M') print("DateTimeIndex...") print(datetimeindex) DateTimeIndex... DatetimeIndex(['2021-09-30 02:35:55+10:00', '2021-10-31 02:35:55+11:00', '2021-11-30 02:35:55+11:00', '2021-12-31 ...
Read MorePython Pandas - Extract year from the DateTimeIndex with specific time series frequency
To extract years from a DateTimeIndex with specific time series frequency, use the DateTimeIndex.year property. This is particularly useful when working with time series data that has yearly frequency patterns. Syntax DateTimeIndex.year Creating DateTimeIndex with Yearly Frequency First, let's create a DateTimeIndex with yearly frequency and timezone ? import pandas as pd # DatetimeIndex with period 6 and frequency as Y i.e. years # timezone is Australia/Sydney datetimeindex = pd.date_range('2021-09-24 02:35:55', periods=6, tz='Australia/Sydney', freq='Y') # display DateTimeIndex print("DateTimeIndex...", datetimeindex) DateTimeIndex... DatetimeIndex(['2021-12-31 02:35:55+11:00', '2022-12-31 02:35:55+11:00', ...
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