Example usage for org.jfree.data.statistics MeanAndStandardDeviation getStandardDeviation

Introduction

In this page you can find the example usage for org.jfree.data.statistics MeanAndStandardDeviation getStandardDeviation.

Prototype

public Number getStandardDeviation() 

Source Link

Document

Returns the standard deviation.

Usage

From source file:org.jfree.data.statistics.DefaultStatisticalCategoryDataset.java

/**
 * Returns the standard deviation value for an item.
 *
 * @param row  the row index (zero-based).
 * @param column  the column index (zero-based).
 *
 * @return The standard deviation (possibly <code>null</code>).
 *///w  w w .j av a 2  s.c o m
@Override
public Number getStdDevValue(int row, int column) {
    Number result = null;
    MeanAndStandardDeviation masd = (MeanAndStandardDeviation) this.data.getObject(row, column);
    if (masd != null) {
        result = masd.getStandardDeviation();
    }
    return result;
}

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From source file:org.jfree.data.statistics.DefaultStatisticalCategoryDataset.java

/**
 * Returns the standard deviation value for an item.
 *
 * @param rowKey  the row key./*  w  w w.j  ava  2s  . c o  m*/
 * @param columnKey  the columnKey.
 *
 * @return The standard deviation (possibly <code>null</code>).
 */
@Override
public Number getStdDevValue(Comparable rowKey, Comparable columnKey) {
    Number result = null;
    MeanAndStandardDeviation masd = (MeanAndStandardDeviation) this.data.getObject(rowKey, columnKey);
    if (masd != null) {
        result = masd.getStandardDeviation();
    }
    return result;
}

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