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

Introduction

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

Prototype

public double getStandardDeviationValue() 

Source Link

Document

Returns the standard deviation as a double primitive.

Usage

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

/**
 * Iterate over all the data items and update the cached bound values.
 *//*from w  w  w  . j ava  2 s.c om*/
private void updateBounds() {
    this.maximumRangeValue = Double.NaN;
    this.maximumRangeValueRow = -1;
    this.maximumRangeValueColumn = -1;
    this.minimumRangeValue = Double.NaN;
    this.minimumRangeValueRow = -1;
    this.minimumRangeValueColumn = -1;
    this.maximumRangeValueIncStdDev = Double.NaN;
    this.maximumRangeValueIncStdDevRow = -1;
    this.maximumRangeValueIncStdDevColumn = -1;
    this.minimumRangeValueIncStdDev = Double.NaN;
    this.minimumRangeValueIncStdDevRow = -1;
    this.minimumRangeValueIncStdDevColumn = -1;

    int rowCount = this.data.getRowCount();
    int columnCount = this.data.getColumnCount();
    for (int r = 0; r < rowCount; r++) {
        for (int c = 0; c < columnCount; c++) {
            MeanAndStandardDeviation masd = (MeanAndStandardDeviation) this.data.getObject(r, c);
            if (masd == null) {
                continue;
            }
            double m = masd.getMeanValue();
            double sd = masd.getStandardDeviationValue();

            if (!Double.isNaN(m)) {

                // update the max value
                if (Double.isNaN(this.maximumRangeValue)) {
                    this.maximumRangeValue = m;
                    this.maximumRangeValueRow = r;
                    this.maximumRangeValueColumn = c;
                } else {
                    if (m > this.maximumRangeValue) {
                        this.maximumRangeValue = m;
                        this.maximumRangeValueRow = r;
                        this.maximumRangeValueColumn = c;
                    }
                }

                // update the min value
                if (Double.isNaN(this.minimumRangeValue)) {
                    this.minimumRangeValue = m;
                    this.minimumRangeValueRow = r;
                    this.minimumRangeValueColumn = c;
                } else {
                    if (m < this.minimumRangeValue) {
                        this.minimumRangeValue = m;
                        this.minimumRangeValueRow = r;
                        this.minimumRangeValueColumn = c;
                    }
                }

                if (!Double.isNaN(sd)) {
                    // update the max value
                    if (Double.isNaN(this.maximumRangeValueIncStdDev)) {
                        this.maximumRangeValueIncStdDev = m + sd;
                        this.maximumRangeValueIncStdDevRow = r;
                        this.maximumRangeValueIncStdDevColumn = c;
                    } else {
                        if (m + sd > this.maximumRangeValueIncStdDev) {
                            this.maximumRangeValueIncStdDev = m + sd;
                            this.maximumRangeValueIncStdDevRow = r;
                            this.maximumRangeValueIncStdDevColumn = c;
                        }
                    }

                    // update the min value
                    if (Double.isNaN(this.minimumRangeValueIncStdDev)) {
                        this.minimumRangeValueIncStdDev = m - sd;
                        this.minimumRangeValueIncStdDevRow = r;
                        this.minimumRangeValueIncStdDevColumn = c;
                    } else {
                        if (m - sd < this.minimumRangeValueIncStdDev) {
                            this.minimumRangeValueIncStdDev = m - sd;
                            this.minimumRangeValueIncStdDevRow = r;
                            this.minimumRangeValueIncStdDevColumn = c;
                        }
                    }
                }
            }
        }
    }
}

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