Click or drag to resize
SeriesStatsExtensionsStdDevLevelK1, K2 Method
Groups the elements of the input series in groups based on the keys produced by `groupSelector` and then returns a new series containing the standard deviation of each group. This operation is designed to be used with [hierarchical indexing](../features.html#indexing). ## Parameters - `series` - A series of values that are used to calculate the standard deviations - `groupSelector` - A delegate that returns a new group key, based on the key in the input series [category:Statistics]

Namespace:  Deedle
Assembly:  Deedle (in Deedle.dll) Version: 1.2
Syntax
C#
Copy
public static Series<K2, double> StdDevLevel<K1, K2>(
	Series<K1, double> series,
	Func<K1, K2> groupSelector
)

Parameters

series
Type: DeedleSeriesK1, Double

[Missing <param name="series"/> documentation for "M:Deedle.SeriesStatsExtensions.StdDevLevel``2(Deedle.Series{``0,System.Double},System.Func{``0,``1})"]

groupSelector
Type: SystemFuncK1, K2

[Missing <param name="groupSelector"/> documentation for "M:Deedle.SeriesStatsExtensions.StdDevLevel``2(Deedle.Series{``0,System.Double},System.Func{``0,``1})"]

Type Parameters

K1
K2

Return Value

Type: SeriesK2, Double

[Missing <returns> documentation for "M:Deedle.SeriesStatsExtensions.StdDevLevel``2(Deedle.Series{``0,System.Double},System.Func{``0,``1})"]

See Also