lt.monarch.chart.spc.math
Class IMRValuesCalculator

java.lang.Object
  lt.monarch.chart.spc.math.ValuesCalculator
      lt.monarch.chart.spc.math.ControlValuesCalculator
          lt.monarch.chart.spc.math.IMRValuesCalculator

Direct Known Subclasses:

IndividualXValuesCalculator, MovingRangeValuesCalculator

public abstract class IMRValuesCalculator
extends ControlValuesCalculator

Calculates values for Individual - X and Moving Range chart. Values are calculated using formulas: http://www.singleton-labs.com/doc/mcharts/guide/#guide/chart-types/4.3.1.html

Field Summary

Modifier and Type	Field and Description
protected java.lang.Double	histLcl
protected java.lang.Double	histUcl

Fields inherited from class lt.monarch.chart.spc.math.ValuesCalculator

nullName

Constructor Summary

Modifier	Constructor and Description
protected	IMRValuesCalculator() Constructs IMR chart values calculator.
protected	IMRValuesCalculator(java.lang.Double lcl, java.lang.Double ucl) Constructs IMR chart values calculator.

Method Summary

Modifier and Type	Method and Description
protected java.util.List<java.lang.Object>	getData(ChartDataModel dataModel) Converts data model to the array list
protected double	getMovingRange(ChartDataModel dataModel, int j) Calculates a moving range.
protected boolean	isNormalDistribution(ChartDataModel dataModel) Checks if data is distributed according normal distribution.
protected double	movingRange(ChartDataModel dataModel) Calculates moving range.
protected double	processSigma(ChartDataModel dataModel) Calculates process sigma.

Methods inherited from class lt.monarch.chart.spc.math.ControlValuesCalculator

averageRange, getCenter, getCenter, getChartLine, getChartLine, getLabels, getLCL, getLCL, getN, getRange, getUCL, getUCL, sigmaX

Methods inherited from class lt.monarch.chart.spc.math.ValuesCalculator

average, fill, fill, fillColumn, fillColumn, fillConstant, fillConstant, getAverage, getc4, getColumn, getd2, getd3, getD3, getD4, getDouble, getE, getF, getG, getH, isEmpty, isNconstant, validateDataModel, validateDataModel, validateDataModel

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

histUcl

protected java.lang.Double histUcl

histLcl

protected java.lang.Double histLcl

Constructor Detail

IMRValuesCalculator

protected IMRValuesCalculator()

Constructs IMR chart values calculator. LCL and UCL values are calculated from the data.

IMRValuesCalculator

protected IMRValuesCalculator(java.lang.Double lcl,
                              java.lang.Double ucl)

Constructs IMR chart values calculator. LCL and UCL values given as a parameters (calculated from historical data). Given LCL and UCL values are used for calculating other chart parameters.

Parameters:

lcl - lower control limit value

ucl - upper control limit value

Method Detail

movingRange

protected double movingRange(ChartDataModel dataModel)
                      throws DataFormatException

Calculates moving range.

Parameters:

dataModel - source data model

Returns:

moving range value.

Throws:

DataFormatException - when the input data are invalid.

getMovingRange

protected double getMovingRange(ChartDataModel dataModel,
                                int j)
                         throws DataFormatException

Calculates a moving range. MR = |Xj - Xj-1| Xj - moving range for one step.

Parameters:

dataModel - measurement samples in the data model.

j - step number.

Returns:

moving rage for a step.

Throws:

DataFormatException

processSigma

protected double processSigma(ChartDataModel dataModel)
                       throws DataFormatException

Calculates process sigma.

Parameters:

dataModel - measurement samples in the data model.

Returns:

process sigma

Throws:

DataFormatException - when the input data are incorrect.

isNormalDistribution

protected boolean isNormalDistribution(ChartDataModel dataModel)

Checks if data is distributed according normal distribution. Performs Swilk-Shapiro test.

Parameters:

dataModel - source data model.

Returns:

if the data are distributed according normal distribution.

getData

protected java.util.List<java.lang.Object> getData(ChartDataModel dataModel)

Converts data model to the array list

Parameters:

dataModel - input data model.

Returns:

data model values packed in to the array list.