snowflake.snowpark.modin.plugin.extensions.window_overrides.Rolling.sem¶
- Rolling.sem(ddof: int = 1, numeric_only: bool = False, *args: Any, **kwargs: Any)[source] (https://github.com/snowflakedb/snowpark-python/blob/v1.42.0/src/snowflake/snowpark/modin/plugin/extensions/window_overrides.py#L433-L443)¶
- Calculate the rolling standard error of mean. - Parameters:
- ddof (int, default 1) – Delta Degrees of Freedom. The divisor used in calculations is - N - ddof, where- Nrepresents the number of elements.
- numeric_only (bool, default False) – Include only float, int, boolean columns. 
 
- Returns:
- Return type is the same as the original object with np.float64 dtype. 
- Return type:
 - Examples - >>> s = pd.Series([0, 1, 2, 3]) >>> s.rolling(2, min_periods=1).sem() 0 NaN 1 0.707107 2 0.707107 3 0.707107 dtype: float64