lt.monarch.chart.spc.math
Class ScatterValuesCalculator

java.lang.Object
  lt.monarch.chart.spc.math.ValuesCalculator
      lt.monarch.chart.spc.math.ScatterValuesCalculator

public class ScatterValuesCalculator
extends ValuesCalculator

Calculates values for the scatter chart. Values are calculated using formulas: http://www.singleton-labs.com/doc/mcharts/guide/#guide/chart-types/4.7.1.html

Field Summary

Modifier and Type	Field and Description

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

nullName

Constructor and Description

ScatterValuesCalculator()

Method Summary

Modifier and Type	Method and Description
java.lang.String[]	getLabels(ChartDataModel srcModel) Returns axis labels.
double	getR(ChartDataModel srcModel) Calculates data correlation coefficient.
void	getScatterPlot(ChartDataModel srcModel, ChartDataModel resultModel) Calculates data model for a scatter series
java.lang.String	getTrendEquation(ChartDataModel srcModel) Constructs trend line equation.
void	getTrendLine(ChartDataModel srcModel, ChartDataModel resultModel) Creates data model for chart trend line.
protected void	validateDataModel(ChartDataModel dataModel) Validates data model.

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

Methods inherited from class java.lang.Object

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

Constructor Detail

ScatterValuesCalculator

public ScatterValuesCalculator()

Method Detail

getScatterPlot

public void getScatterPlot(ChartDataModel srcModel,
                           ChartDataModel resultModel)
                    throws DataFormatException

Calculates data model for a scatter series

Parameters:

srcModel - input data model.

resultModel - destination data model.

Throws:

DataFormatException - when the input data are invalid.

getLabels

public java.lang.String[] getLabels(ChartDataModel srcModel)
                             throws DataFormatException

Returns axis labels.

Parameters:

srcModel - input data model

Returns:

0th element - x axis, 1st element y axis label.

Throws:

DataFormatException - when the input data are invalid.

getTrendLine

public void getTrendLine(ChartDataModel srcModel,
                         ChartDataModel resultModel)
                  throws DataFormatException

Creates data model for chart trend line.

Parameters:

srcModel - input data model.

resultModel - destination data model.

Throws:

DataFormatException - when the input data are invalid.

getTrendEquation

public java.lang.String getTrendEquation(ChartDataModel srcModel)
                                  throws DataFormatException

Constructs trend line equation.

Parameters:

srcModel - input data model.

Returns:

trend lien equation.

Throws:

DataFormatException - when the input data are invalid.

getR

public double getR(ChartDataModel srcModel)
            throws DataFormatException

Calculates data correlation coefficient.

Parameters:

srcModel - input data model.

Returns:

correlation coefficient.

Throws:

DataFormatException - when the input data are invalid.

validateDataModel

protected void validateDataModel(ChartDataModel dataModel)
                          throws DataFormatException

Description copied from class: ValuesCalculator

Validates data model. Checks if it satisfies chart type requirements.

Specified by:

validateDataModel in class ValuesCalculator

Parameters:

dataModel - input chart data model.

Throws:

DataFormatException - when the data is invalid.