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snowflake.snowpark.functions.stddev_pop¶

snowflake.snowpark.functions.stddev_pop(e: Union[Column, str]) → Column[source] (https://github.com/snowflakedb/snowpark-python/blob/v1.16.0/src/snowflake/snowpark/functions.py#L963-L976)¶

Returns the population standard deviation (square root of variance) of non-NULL values. If all records inside a group are NULL, returns NULL.

Example::

>>> df = session.create_dataframe(
...     [4, 9],
...     schema=["N"],
... ).select(stddev_pop(col("N")))
>>> df.collect()
[Row(STDDEV_POP("N")=2.5)]

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