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MeasuresHistogramStandardDeviation Method (Int32, Double)

Calculate standard deviation of an histogram.

Namespace:  Accord.Statistics
Assembly:  Accord.Math (in Accord.Math.dll) Version: 3.8.0
public static double HistogramStandardDeviation(
	this int[] values,
	double mean
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Type: SystemInt32
Histogram array.
Type: SystemDouble
Mean value of the histogram.

Return Value

Type: Double
Returns value of standard deviation.

Usage Note

In Visual Basic and C#, you can call this method as an instance method on any object of type . When you use instance method syntax to call this method, omit the first parameter. For more information, see Extension Methods (Visual Basic) or Extension Methods (C# Programming Guide).

The input array is treated as histogram, i.e. its indexes are treated as values of stochastic function, but array values are treated as "probabilities" (total amount of hits).

The method is an equivalent to the HistogramStandardDeviation(Int32) method, but it relies on the passed mean value, which is previously calculated using HistogramMean(Int32) method.

See Also