Example usage for org.jfree.chart.util ParamChecks nullNotPermitted

Introduction

In this page you can find the example usage for org.jfree.chart.util ParamChecks nullNotPermitted.

Prototype

public static void nullNotPermitted(Object param, String name) 

Source Link

Document

Throws an IllegalArgumentException if the supplied param is null.

Usage

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

/**
 * Calculates the correlation between two datasets.  Both arrays should
 * contain the same number of items.  Null values are treated as zero.
 * <P>// w  w  w  . j  ava2 s . c o  m
 * Information about the correlation calculation was obtained from:
 *
 * http://trochim.human.cornell.edu/kb/statcorr.htm
 *
 * @param data1  the first dataset.
 * @param data2  the second dataset.
 *
 * @return The correlation.
 */
public static double getCorrelation(Number[] data1, Number[] data2) {
    ParamChecks.nullNotPermitted(data1, "data1");
    ParamChecks.nullNotPermitted(data2, "data2");
    if (data1.length != data2.length) {
        throw new IllegalArgumentException("'data1' and 'data2' arrays must have same length.");
    }
    int n = data1.length;
    double sumX = 0.0;
    double sumY = 0.0;
    double sumX2 = 0.0;
    double sumY2 = 0.0;
    double sumXY = 0.0;
    for (int i = 0; i < n; i++) {
        double x = 0.0;
        if (data1[i] != null) {
            x = data1[i].doubleValue();
        }
        double y = 0.0;
        if (data2[i] != null) {
            y = data2[i].doubleValue();
        }
        sumX = sumX + x;
        sumY = sumY + y;
        sumXY = sumXY + (x * y);
        sumX2 = sumX2 + (x * x);
        sumY2 = sumY2 + (y * y);
    }
    return (n * sumXY - sumX * sumY) / Math.pow((n * sumX2 - sumX * sumX) * (n * sumY2 - sumY * sumY), 0.5);
}

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From source file:org.jfree.data.xy.DefaultIntervalXYDataset.java

/**
 * Adds a series or if a series with the same key already exists replaces
 * the data for that series, then sends a {@link DatasetChangeEvent} to
 * all registered listeners./*ww  w. j a  v a2s  .c  om*/
 *
 * @param seriesKey  the series key (<code>null</code> not permitted).
 * @param data  the data (must be an array with length 6, containing six
 *     arrays of equal length, the first three containing the x-values
 *     (x, xLow and xHigh) and the last three containing the y-values
 *     (y, yLow and yHigh)).
 */
public void addSeries(Comparable seriesKey, double[][] data) {
    ParamChecks.nullNotPermitted(seriesKey, "seriesKey");
    ParamChecks.nullNotPermitted(seriesKey, "data");
    if (data.length != 6) {
        throw new IllegalArgumentException("The 'data' array must have length == 6.");
    }
    int length = data[0].length;
    if (length != data[1].length || length != data[2].length || length != data[3].length
            || length != data[4].length || length != data[5].length) {
        throw new IllegalArgumentException("The 'data' array must contain six arrays with equal length.");
    }
    int seriesIndex = indexOf(seriesKey);
    if (seriesIndex == -1) { // add a new series
        this.seriesKeys.add(seriesKey);
        this.seriesList.add(data);
    } else { // replace an existing series
        this.seriesList.remove(seriesIndex);
        this.seriesList.add(seriesIndex, data);
    }
    notifyListeners(new DatasetChangeEvent(this, this));
}

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From source file:org.jfree.data.time.TimeSeriesCollection.java

/**
 * Returns the index of the series with the specified key, or -1 if no
 * series has that key./*w  w  w .ja  va2  s.com*/
 * 
 * @param key  the key (<code>null</code> not permitted).
 * 
 * @return The index.
 * 
 * @since 1.0.17
 */
public int getSeriesIndex(Comparable key) {
    ParamChecks.nullNotPermitted(key, "key");
    int seriesCount = getSeriesCount();
    for (int i = 0; i < seriesCount; i++) {
        TimeSeries series = (TimeSeries) this.data.get(i);
        if (key.equals(series.getKey())) {
            return i;
        }
    }
    return -1;
}

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From source file:org.jfree.data.DefaultKeyedValues2D.java

/**
 * Removes a row from the table./*from  w  w w. j a  va 2s  .  co m*/
 *
 * @param rowKey  the row key (<code>null</code> not permitted).
 *
 * @see #removeRow(int)
 * @see #removeColumn(Comparable)
 *
 * @throws UnknownKeyException if <code>rowKey</code> is not defined in the
 *         table.
 */
public void removeRow(Comparable rowKey) {
    ParamChecks.nullNotPermitted(rowKey, "rowKey");
    int index = getRowIndex(rowKey);
    if (index >= 0) {
        removeRow(index);
    } else {
        throw new UnknownKeyException("Unknown key: " + rowKey);
    }
}

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From source file:org.jfree.experimental.swt.SWTUtils.java

/**
 * Converts an AWT image to SWT./*from  w  ww. j  a  v  a  2 s. c o  m*/
 *
 * @param image  the image (<code>null</code> not permitted).
 *
 * @return Image data.
 */
public static ImageData convertAWTImageToSWT(Image image) {
    ParamChecks.nullNotPermitted(image, "image");
    int w = image.getWidth(null);
    int h = image.getHeight(null);
    if (w == -1 || h == -1) {
        return null;
    }
    BufferedImage bi = new BufferedImage(w, h, BufferedImage.TYPE_INT_RGB);
    Graphics g = bi.getGraphics();
    g.drawImage(image, 0, 0, null);
    g.dispose();
    return convertToSWT(bi);
}

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From source file:org.jfree.data.xy.DefaultTableXYDataset.java

/**
 * Removes the items from all series for a given x value.
 *
 * @param x  the x-value./*from w  ww.  j a  v a  2 s.  c  o m*/
 */
public void removeAllValuesForX(Number x) {
    ParamChecks.nullNotPermitted(x, "x");
    boolean savedState = this.propagateEvents;
    this.propagateEvents = false;
    for (int s = 0; s < this.data.size(); s++) {
        XYSeries series = (XYSeries) this.data.get(s);
        series.remove(x);
    }
    this.propagateEvents = savedState;
    this.xPoints.remove(x);
    fireDatasetChanged();
}

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From source file:org.jfree.data.time.TimeSeriesCollection.java

/**
 * Adds a series to the collection and sends a {@link DatasetChangeEvent} to
 * all registered listeners./*from w ww .  j  ava2s .  c o m*/
 *
 * @param series  the series (<code>null</code> not permitted).
 */
public void addSeries(TimeSeries series) {
    ParamChecks.nullNotPermitted(series, "series");
    this.data.add(series);
    series.addChangeListener(this);
    series.addVetoableChangeListener(this);
    fireDatasetChanged();
}

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From source file:org.jfree.data.time.TimeSeriesCollection.java

/**
 * Removes the specified series from the collection and sends a
 * {@link DatasetChangeEvent} to all registered listeners.
 *
 * @param series  the series (<code>null</code> not permitted).
 *//*from  w  w  w .j  a  v a  2 s .c  o  m*/
public void removeSeries(TimeSeries series) {
    ParamChecks.nullNotPermitted(series, "series");
    this.data.remove(series);
    series.removeChangeListener(this);
    series.removeVetoableChangeListener(this);
    fireDatasetChanged();
}

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From source file:org.jfree.data.DefaultKeyedValues2D.java

/**
 * Removes a column from the table./*from  w w w .j a v  a2  s  . c o  m*/
 *
 * @param columnKey  the column key (<code>null</code> not permitted).
 *
 * @throws UnknownKeyException if the table does not contain a column with
 *     the specified key.
 * @throws IllegalArgumentException if <code>columnKey</code> is
 *     <code>null</code>.
 *
 * @see #removeColumn(int)
 * @see #removeRow(Comparable)
 */
public void removeColumn(Comparable columnKey) {
    ParamChecks.nullNotPermitted(columnKey, "columnKey");
    if (!this.columnKeys.contains(columnKey)) {
        throw new UnknownKeyException("Unknown key: " + columnKey);
    }
    Iterator iterator = this.rows.iterator();
    while (iterator.hasNext()) {
        DefaultKeyedValues rowData = (DefaultKeyedValues) iterator.next();
        int index = rowData.getIndex(columnKey);
        if (index >= 0) {
            rowData.removeValue(columnKey);
        }
    }
    this.columnKeys.remove(columnKey);
}

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From source file:org.jfree.data.time.TimeSeries.java

/**
 * Finds the range of y-values that fall within the specified range of
 * x-values (where the x-values are interpreted as milliseconds since the
 * epoch and converted to time periods using the specified timezone).
 * /*ww w.j ava  2  s.  c om*/
 * @param xRange  the subset of x-values to use (<code>null</code> not
 *     permitted).
 * @param xAnchor  the anchor point for the x-values (<code>null</code>
 *     not permitted).
 * @param zone  the time zone (<code>null</code> not permitted).
 * 
 * @return The range of y-values.
 * 
 * @since 1.0.18
 */
public Range findValueRange(Range xRange, TimePeriodAnchor xAnchor, TimeZone zone) {
    ParamChecks.nullNotPermitted(xRange, "xRange");
    ParamChecks.nullNotPermitted(xAnchor, "xAnchor");
    ParamChecks.nullNotPermitted(zone, "zone");
    if (this.data.isEmpty()) {
        return null;
    }
    Calendar calendar = Calendar.getInstance(zone);
    // since the items are ordered, we could be more clever here and avoid
    // iterating over all the data
    double lowY = Double.POSITIVE_INFINITY;
    double highY = Double.NEGATIVE_INFINITY;
    for (int i = 0; i < this.data.size(); i++) {
        TimeSeriesDataItem item = (TimeSeriesDataItem) this.data.get(i);
        long millis = item.getPeriod().getMillisecond(xAnchor, calendar);
        if (xRange.contains(millis)) {
            Number n = item.getValue();
            if (n != null) {
                double v = n.doubleValue();
                lowY = Math.min(lowY, v);
                highY = Math.max(highY, v);
            }
        }
    }
    if (Double.isInfinite(lowY) && Double.isInfinite(highY)) {
        if (lowY < highY) {
            return new Range(lowY, highY);
        } else {
            return new Range(Double.NaN, Double.NaN);
        }
    }
    return new Range(lowY, highY);
}

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