StatControlCharts.QCCapIndexes Method

public QCCapIndexes(TVec Data, double LB, double UB, ref double p, ref double CP, ref double CPK, ref TTwoElmReal CPConfInt, ref TTwoElmReal CPKConfInt, double Alpha);

Parameters

Parameters	Description
Data	Process data.
p	Returns calculated significance.
CP	Returns capability index.
CPK	Returns capability index for uncentred process.
CPConfInt	Returns 100*(1-Alpha) Cp confindence interval.
CPKConfInt	Returns 100*(1-Alpha) CPK confidence interval.
Alpha	Desired significance level.
LB,UB	Lower and upper specification limit. LB and UB are boundaries within which measurements on a product characteristic must lie.

Remarks

Process Capability indexes p, Cp and Cpk.

Calculates the Process Capability indexes p, Cp(aka CPR) and Cpk(AKA CPRk).

C# Example

In the following example capability indexes and their condifence are calculated.

using Dew.Math;
using Dew.Math.Units;
using Dew.Stats.Units;
namespace Dew.Examples
{
  private void Example()
  {
    Vector data = new Vector(0);
    data.LoadFromFile("PCDATA.vec");
    StatControlCharts.QCCapIndexes(Data,out lb,out ub,out p,out cp,out cpk,out CPConfInt,out CPKConfInt, 0.05);
  }
}