CChart Class

A v2 SPC chart for monitoring defect counts per inspection unit (C chart). Implements the full Unfitted → Fitted → Deployed → Apply lifecycle defined by ControlChart.

Definition

Namespace: Numerics.NET.Statistics.ProcessControl
Assembly: Numerics.NET (in Numerics.NET.dll) Version: 10.4.0

public sealed class CChart : ControlChart<CChart>

Visual Basic

Public NotInheritable Class CChart
	Inherits ControlChart(Of CChart)

C++/CLI

public ref class CChart sealed : public ControlChart<CChart^>

[<SealedAttribute>]
type CChart = 
    class
        inherit ControlChart<CChart>
    end

Inheritance: Object → ControlChart → ControlChart<CChart> → CChart

Remarks

The C chart is used when the number of defects per constant inspection unit is being monitored. Phase-I control limits are estimated from a baseline data set; the deployed chart can then be serialized and applied to future inspection batches without re-estimation.

Typical usage:

double[] baseline = { 3, 1, 4, 2, 5, 1, 3, 2, 4, 3 };

// Phase I — establish limits
CChart chart = new CChart(Vector.Create(baseline));
chart.Analyze();

// Deploy for production monitoring
CChart deployed = (CChart)chart.Deploy();

// Persist and restore
string json = deployed.ToJson();
CChart restored = CChart.FromJson(json);

// Phase II — apply to new observations
double[] production = { 2, 3, 1, 4, 2 };
CChart applied = (CChart)restored.Apply(Vector.Create(production));

Constructors

CChart

Initializes a new CChart in the Unfitted state from a vector of defect counts.

Properties

AverageDefectCount	Gets the average defect count (c̄) computed during phase-I analysis, which serves as the chart center line.
Series	Gets the C chart series. Contains the analyzed defect counts and the computed control limits.
State	Gets the current lifecycle state of this chart. (Inherited from ControlChart)

Methods

Analyze	Performs phase-I analysis, establishing control limits and transitioning the chart from Unfitted to Fitted. (Inherited from ControlChart)
Apply	Applies new observations to this Deployed chart and returns a new TChart in the Fitted state. (Inherited from ControlChart<TChart>)
CreateDeployed	Creates a CChart directly in the Deployed state from externally supplied fitted parameters.
Deploy	Creates a new TChart in the Deployed state from this Fitted chart. (Inherited from ControlChart<TChart>)
Diagnose	Produces a diagnostic report for the current chart state. (Inherited from ControlChart)
Equals	Determines whether the specified object is equal to the current object. (Inherited from Object)
FromJson	Reconstructs a CChart from a JSON string previously produced by ToJson().
GetHashCode	Serves as the default hash function. (Inherited from Object)
GetType	Gets the Type of the current instance. (Inherited from Object)
ToJson	Serializes this CChart to a JSON string.
ToString	Returns a string that represents the current object. (Inherited from Object)