polars.Series.dt.total_nanoseconds#

Series.dt.total_nanoseconds() → Series[source]#

从Duration类型中提取总纳秒数。

Returns:

Series: 数据类型系列 Int64。

示例

>>> from datetime import datetime
>>> date = pl.datetime_range(
...     datetime(2020, 1, 1),
...     datetime(2020, 1, 1, 0, 0, 1, 0),
...     "1ms",
...     eager=True,
... ).alias("datetime")[:3]
>>> date
shape: (3,)
Series: 'datetime' [datetime[μs]]
[
        2020-01-01 00:00:00
        2020-01-01 00:00:00.001
        2020-01-01 00:00:00.002
]
>>> date.diff().dt.total_nanoseconds()
shape: (3,)
Series: 'datetime' [i64]
[
        null
        1000000
        1000000
]