Package org.jfree.data

Examples of org.jfree.data.DefaultKeyedValues

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     *
     * @param data  the data.
     */
    public DefaultPieDataset(final KeyedValues data) {

        this.data = new DefaultKeyedValues();
        for (int i = 0; i < data.getItemCount(); i++) {
            this.data.addValue(data.getKey(i), data.getValue(i));
        }
    }
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     *
     * @param root  the root handler.
     */
    public CategorySeriesHandler(final RootHandler root) {
        this.root = root;
        this.values = new DefaultKeyedValues();
    }
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    /**
     * Confirm that cloning works.
     */
    public void testCloning() {
        final DefaultKeyedValues v1 = new DefaultKeyedValues();
        v1.addValue("V1", new Integer(1));
        v1.addValue("V2", null);
        v1.addValue("V3", new Integer(3));
        DefaultKeyedValues v2 = null;
        try {
            v2 = (DefaultKeyedValues) v1.clone();
        }
        catch (CloneNotSupportedException e) {
            System.err.println("DefaultKeyedValuesTests.testCloning: failed to clone.");
        }
        assertTrue(v1 != v2);
        assertTrue(v1.getClass() == v2.getClass());
        assertTrue(v1.equals(v2));
    }
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    /**
     * Problem that inserting and retrieving values works as expected.
     */
    public void testInsertAndRetrieve() {

        final DefaultKeyedValues data = new DefaultKeyedValues();
        data.addValue("A", new Double(1.0));
        data.addValue("B", new Double(2.0));
        data.addValue("C", new Double(3.0));
        data.addValue("D", null);

        // check key order
        assertEquals(data.getKey(0), "A");
        assertEquals(data.getKey(1), "B");
        assertEquals(data.getKey(2), "C");
        assertEquals(data.getKey(3), "D");

        // check retrieve value by key
        assertEquals(data.getValue("A"), new Double(1.0));
        assertEquals(data.getValue("B"), new Double(2.0));
        assertEquals(data.getValue("C"), new Double(3.0));
        assertEquals(data.getValue("D"), null);

        // check retrieve value by index
        assertEquals(data.getValue(0), new Double(1.0));
        assertEquals(data.getValue(1), new Double(2.0));
        assertEquals(data.getValue(2), new Double(3.0));
        assertEquals(data.getValue(3), null);

    }
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    /**
     * Tests sorting of data by key (ascending).
     */
    public void testSortByKeyAscending() {

        final DefaultKeyedValues data = new DefaultKeyedValues();
        data.addValue("C", new Double(1.0));
        data.addValue("B", null);
        data.addValue("D", new Double(3.0));
        data.addValue("A", new Double(2.0));

        data.sortByKeys(SortOrder.ASCENDING);

        // check key order
        assertEquals(data.getKey(0), "A");
        assertEquals(data.getKey(1), "B");
        assertEquals(data.getKey(2), "C");
        assertEquals(data.getKey(3), "D");

        // check retrieve value by key
        assertEquals(data.getValue("A"), new Double(2.0));
        assertEquals(data.getValue("B"), null);
        assertEquals(data.getValue("C"), new Double(1.0));
        assertEquals(data.getValue("D"), new Double(3.0));

        // check retrieve value by index
        assertEquals(data.getValue(0), new Double(2.0));
        assertEquals(data.getValue(1), null);
        assertEquals(data.getValue(2), new Double(1.0));
        assertEquals(data.getValue(3), new Double(3.0));

    }
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    /**
     * Tests sorting of data by key (descending).
     */
    public void testSortByKeyDescending() {

        final DefaultKeyedValues data = new DefaultKeyedValues();
        data.addValue("C", new Double(1.0));
        data.addValue("B", null);
        data.addValue("D", new Double(3.0));
        data.addValue("A", new Double(2.0));

        data.sortByKeys(SortOrder.DESCENDING);

        // check key order
        assertEquals(data.getKey(0), "D");
        assertEquals(data.getKey(1), "C");
        assertEquals(data.getKey(2), "B");
        assertEquals(data.getKey(3), "A");

        // check retrieve value by key
        assertEquals(data.getValue("A"), new Double(2.0));
        assertEquals(data.getValue("B"), null);
        assertEquals(data.getValue("C"), new Double(1.0));
        assertEquals(data.getValue("D"), new Double(3.0));

        // check retrieve value by index
        assertEquals(data.getValue(0), new Double(3.0));
        assertEquals(data.getValue(1), new Double(1.0));
        assertEquals(data.getValue(2), null);
        assertEquals(data.getValue(3), new Double(2.0));

    }
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    /**
     * Tests sorting of data by value (ascending).
     */
    public void testSortByValueAscending() {

        final DefaultKeyedValues data = new DefaultKeyedValues();
        data.addValue("C", new Double(1.0));
        data.addValue("B", null);
        data.addValue("D", new Double(3.0));
        data.addValue("A", new Double(2.0));

        data.sortByValues(SortOrder.ASCENDING);

        // check key order
        assertEquals(data.getKey(0), "C");
        assertEquals(data.getKey(1), "A");
        assertEquals(data.getKey(2), "D");
        assertEquals(data.getKey(3), "B");

        // check retrieve value by key
        assertEquals(data.getValue("A"), new Double(2.0));
        assertEquals(data.getValue("B"), null);
        assertEquals(data.getValue("C"), new Double(1.0));
        assertEquals(data.getValue("D"), new Double(3.0));

        // check retrieve value by index
        assertEquals(data.getValue(0), new Double(1.0));
        assertEquals(data.getValue(1), new Double(2.0));
        assertEquals(data.getValue(2), new Double(3.0));
        assertEquals(data.getValue(3), null);

    }
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    /**
     * Tests sorting of data by key (descending).
     */
    public void testSortByValueDescending() {

        final DefaultKeyedValues data = new DefaultKeyedValues();
        data.addValue("C", new Double(1.0));
        data.addValue("B", null);
        data.addValue("D", new Double(3.0));
        data.addValue("A", new Double(2.0));

        data.sortByValues(SortOrder.DESCENDING);

        // check key order
        assertEquals(data.getKey(0), "D");
        assertEquals(data.getKey(1), "A");
        assertEquals(data.getKey(2), "C");
        assertEquals(data.getKey(3), "B");

        // check retrieve value by key
        assertEquals(data.getValue("A"), new Double(2.0));
        assertEquals(data.getValue("B"), null);
        assertEquals(data.getValue("C"), new Double(1.0));
        assertEquals(data.getValue("D"), new Double(3.0));

        // check retrieve value by index
        assertEquals(data.getValue(0), new Double(3.0));
        assertEquals(data.getValue(1), new Double(2.0));
        assertEquals(data.getValue(2), new Double(1.0));
        assertEquals(data.getValue(3), null);

    }
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    /**
     * Serialize an instance, restore it, and check for equality.
     */
    public void testSerialization() {

        final DefaultKeyedValues v1 = new DefaultKeyedValues();
        v1.addValue("Key 1", new Double(23));
        v1.addValue("Key 2", null);
        v1.addValue("Key 3", new Double(42));

        DefaultKeyedValues v2 = null;

        try {
            final ByteArrayOutputStream buffer = new ByteArrayOutputStream();
            final ObjectOutput out = new ObjectOutputStream(buffer);
            out.writeObject(v1);
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     *
     * @return The cumulative percentages.
     */
    public static KeyedValues getCumulativePercentages(KeyedValues data) {

        final DefaultKeyedValues result = new DefaultKeyedValues();

        double total = 0.0;
        for (int i = 0; i < data.getItemCount(); i++) {
            final Number v = data.getValue(i);
            if (v != null) {
                total = total + v.doubleValue();
            }
        }

        double runningTotal = 0.0;
        for (int i = 0; i < data.getItemCount(); i++) {
            final Number v = data.getValue(i);
            if (v != null) {
                runningTotal = runningTotal + v.doubleValue();
            }
            result.addValue(data.getKey(i), new Double(runningTotal / total));
        }

        return result;

    }
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  • java.util.List
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