Frequency

relationalai.semantics.std.datetime

Frequency = Union[LiteralType['ms'], LiteralType['s'], LiteralType['m'], LiteralType['H'], LiteralType['D'], LiteralType['W'], LiteralType['M'], LiteralType['Y']]

Type alias for time frequency strings used in date and datetime range operations.

Valid frequency strings:

• "ms": milliseconds
• "s": seconds
• "m": minutes (lowercase m)
• "H": hours
• "D": days
• "W": weeks
• "M": months (uppercase M)
• "Y": years

Members

• LiteralType

Examples

Use frequency strings in date ranges:

>>> datetime.date.range(start_date, end_date, freq="D")  # Daily
>>> datetime.date.range(start_date, end_date, freq="W")  # Weekly
>>> datetime.date.range(start_date, end_date, freq="M")  # Monthly

Use frequency strings in datetime ranges:

>>> datetime.datetime.range(start_dt, end_dt, freq="H")   # Hourly
>>> datetime.datetime.range(start_dt, end_dt, freq="m")   # Every minute
>>> datetime.datetime.range(start_dt, end_dt, freq="ms")  # Milliseconds

Used By

 semantics > std > datetime
├──  date
│   └──  range
└──  datetime
    └──  range