Examples of PearsonCorrelationMapping

Examples of edu.brown.mappings.PearsonCorrelationMapping

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    /**
     * testNoSamples
     */
    public void testNoSamples() {
        PearsonCorrelationMapping p = new PearsonCorrelationMapping();
        assertNull(p.calculate());
    }
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Examples of edu.brown.mappings.PearsonCorrelationMapping

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    /**
     * testClear
     */
    public void testClear() {
        PearsonCorrelationMapping p = new PearsonCorrelationMapping();
        for (int i = 0; i < num_samples; i++) {
            p.addOccurrence(i, i);
        } // FOR
        p.clear();
        assertEquals(0, p.size());
        assertNull(p.calculate());
    }
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Examples of edu.brown.mappings.PearsonCorrelationMapping

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    /**
     * testSingleSample
     */
    public void testSingleSample() {
        PearsonCorrelationMapping p = new PearsonCorrelationMapping();
        p.addOccurrence(1, 1);
        Double result = p.calculate();
        assertNotNull(result);
        assertEquals(1.0d, roundToDecimals(result, 1));
    }
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Examples of edu.brown.mappings.PearsonCorrelationMapping

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    /**
     * testIntegers
     */
    public void testIntegers() {
        PearsonCorrelationMapping p = new PearsonCorrelationMapping();
        for (int i = 0; i < num_samples; i++) {
            p.addOccurrence(Integer.MAX_VALUE, Integer.MAX_VALUE);
        }
        assertEquals(1.0d, roundToDecimals(p.calculate(), 1));
       
        p.clear();
        for (int i = 0; i < num_samples; i++) {
            p.addOccurrence(Integer.MIN_VALUE, Integer.MIN_VALUE);
        }
        assertEquals(1.0d, roundToDecimals(p.calculate(), 1));
    }
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Examples of edu.brown.mappings.PearsonCorrelationMapping

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    /**
     * testLongs
     */
    public void testLongs() {
        PearsonCorrelationMapping p = new PearsonCorrelationMapping();
        for (int i = 0; i < num_samples; i++) {
            p.addOccurrence(Long.MAX_VALUE, Long.MAX_VALUE);
        }
        assertEquals(1.0d, roundToDecimals(p.calculate(), 1));
       
        p.clear();
        for (int i = 0; i < num_samples; i++) {
            p.addOccurrence(Long.MIN_VALUE, Long.MIN_VALUE);
        }
        assertEquals(1.0d, roundToDecimals(p.calculate(), 1));
    }
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Examples of edu.brown.mappings.PearsonCorrelationMapping

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    /**
     * testDoubles
     */
    public void testDoubles() {
        PearsonCorrelationMapping p = new PearsonCorrelationMapping();
        for (int i = 0; i < num_samples; i++) {
            p.addOccurrence(Double.MAX_VALUE, Double.MAX_VALUE);
        }
        assertEquals(1.0d, roundToDecimals(p.calculate(), 1));
       
        p.clear();
        for (int i = 0; i < num_samples; i++) {
            p.addOccurrence(Double.MIN_VALUE, Double.MIN_VALUE);
        }
        assertEquals(1.0d, roundToDecimals(p.calculate(), 1));
    }
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Examples of edu.brown.mappings.PearsonCorrelationMapping

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    /**
     * testAbsolutePositive
     */
    public void testAbsolutePositive() {
        PearsonCorrelationMapping p = new PearsonCorrelationMapping();
        for (int i = 0; i < num_samples; i++) {
            p.addOccurrence(i, i);
        }
        assertEquals(1.0d, roundToDecimals(p.calculate(), 1));
    }
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Examples of edu.brown.mappings.PearsonCorrelationMapping

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    /**
     * testAbsoluteNegative
     */
    public void testAbsoluteNegative() {
        PearsonCorrelationMapping p = new PearsonCorrelationMapping();
        for (int i = 0; i < num_samples; i++) {
            p.addOccurrence(i, -i);
        }
        assertEquals(-1.0d, roundToDecimals(p.calculate(), 1));
    }
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Examples of edu.brown.mappings.PearsonCorrelationMapping

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    /**
     * testRandomCorrelation
     */
    public void testRandomCorrelation() {
        PearsonCorrelationMapping p = new PearsonCorrelationMapping();
        for (int i = 0; i < num_samples; i++) {
            p.addOccurrence(i, (this.rand.nextDouble() - 0.5) * i);
        }
        assertTrue(Math.abs(p.calculate()) < 0.1);
    }
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Examples of edu.brown.mappings.PearsonCorrelationMapping

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    /**
     * testPositiveCorrelation
     */
    public void testPositiveCorrelation() {
        PearsonCorrelationMapping p = new PearsonCorrelationMapping();
        for (int i = 0; i < num_samples; i++) {
            p.addOccurrence(i, (this.rand.nextDouble()) * i);
        }
        assertTrue(Math.abs(p.calculate()) > 0.4);
    }
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