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Navigation: Code Documentation > RSCharting > RSChartFunction > Classes > TRSCustomChartFunction > Methods

TRSCustomChartFunction.StdDev(TRSCustomChart,TRSCustomChart,Integer,Integer,TDateTime,Integer,Integer) Method

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Calculates the sample standard deviation (the square root of the sample variance) of all SourceChart's values over the time period and adds the value to the TargetChart. If the TargetChart is of a type that has more than 2 dimensions, such as a TRSLineChart with X and Y values, the new TargetChart value includes the TimeStamp.

Namespace: RSChartFunction

Parameters

SourceChart

Type: TRSCustomChart

Chart to calculate the maximum from

TargetChart

Type: TRSCustomChart

Chart to add the calculated maximum to

IndexLow

Type: Integer

Lower bounds index into the SourceChart

IndexHigh

Type: Integer

Upper bounds index into the SourceChart
 

TimeStamp

Type: TDateTime

TimeStamp to attach to the new value

SourceDim

Type: Integer

TargetDim

Type: Integer

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