CuSum is a cumulative sum chart. It is more efficient than a Shewhart chart for detecting small shifts in the mean of a process.

Namespace: Imsl.Chart2D.QC
Assembly: ImslCS (in ImslCS.dll) Version: 6.5.0.0

Syntax

C#
[SerializableAttribute]
public class CuSum : ShewhartControlChart
Visual Basic (Declaration)
<SerializableAttribute> _
Public Class CuSum _
	Inherits ShewhartControlChart
Visual C++
[SerializableAttribute]
public ref class CuSum : public ShewhartControlChart

Remarks

CuSum plots the cumulative sum of the deviations of the expected value. If \mu_0 is the expected mean for a process and \bar{x}_i are the sample means then the cumulative sum is

C_i=C_{i-1}+\left(\bar{x}_i-\mu_0\right)

Inheritance Hierarchy

See Also