Examples of MonitoredFunction

org.apache.commons.math.analysis.MonitoredFunction
Wrapper class for counting functions calls. @version $Revision: 811685 $ $Date: 2009-09-05 13:36:48 -0400 (Sat, 05 Sep 2009) $
org.apache.commons.math3.analysis.MonitoredFunction
Wrapper class for counting functions calls.

Examples of org.apache.commons.math.analysis.MonitoredFunction

        }
    }


    public void testInitialGuess() throws MathException {


        MonitoredFunction f = new MonitoredFunction(new QuinticFunction());
        UnivariateRealSolver solver = new BrentSolver();
        double result;


        // no guess
        result = solver.solve(f, 0.6, 7.0);
        assertEquals(result, 1.0, solver.getAbsoluteAccuracy());
        int referenceCallsCount = f.getCallsCount();
        assertTrue(referenceCallsCount >= 13);


        // invalid guess (it *is* a root, but outside of the range)
        try {
          result = solver.solve(f, 0.6, 7.0, 0.0);
          fail("an IllegalArgumentException was expected");
        } catch (IllegalArgumentException iae) {
            // expected behaviour
        } catch (Exception e) {
            fail("wrong exception caught: " + e.getMessage());
        }


        // bad guess
        f.setCallsCount(0);
        result = solver.solve(f, 0.6, 7.0, 0.61);
        assertEquals(result, 1.0, solver.getAbsoluteAccuracy());
        assertTrue(f.getCallsCount() > referenceCallsCount);


        // good guess
        f.setCallsCount(0);
        result = solver.solve(f, 0.6, 7.0, 0.999999);
        assertEquals(result, 1.0, solver.getAbsoluteAccuracy());
        assertTrue(f.getCallsCount() < referenceCallsCount);


        // perfect guess
        f.setCallsCount(0);
        result = solver.solve(f, 0.6, 7.0, 1.0);
        assertEquals(result, 1.0, solver.getAbsoluteAccuracy());
        assertEquals(0, solver.getIterationCount());
        assertEquals(1, f.getCallsCount());


    }

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Examples of org.apache.commons.math.analysis.MonitoredFunction

        }
    }


    public void testInitialGuess() throws MathException {


        MonitoredFunction f = new MonitoredFunction(new QuinticFunction());
        UnivariateRealSolver solver = new BrentSolver();
        double result;


        // no guess
        result = solver.solve(f, 0.6, 7.0);
        assertEquals(result, 1.0, solver.getAbsoluteAccuracy());
        int referenceCallsCount = f.getCallsCount();
        assertTrue(referenceCallsCount >= 13);


        // invalid guess (it *is* a root, but outside of the range)
        try {
          result = solver.solve(f, 0.6, 7.0, 0.0);
          fail("an IllegalArgumentException was expected");
        } catch (IllegalArgumentException iae) {
            // expected behaviour
        }


        // bad guess
        f.setCallsCount(0);
        result = solver.solve(f, 0.6, 7.0, 0.61);
        assertEquals(result, 1.0, solver.getAbsoluteAccuracy());
        assertTrue(f.getCallsCount() > referenceCallsCount);


        // good guess
        f.setCallsCount(0);
        result = solver.solve(f, 0.6, 7.0, 0.999999);
        assertEquals(result, 1.0, solver.getAbsoluteAccuracy());
        assertTrue(f.getCallsCount() < referenceCallsCount);


        // perfect guess
        f.setCallsCount(0);
        result = solver.solve(f, 0.6, 7.0, 1.0);
        assertEquals(result, 1.0, solver.getAbsoluteAccuracy());
        assertEquals(0, solver.getIterationCount());
        assertEquals(1, f.getCallsCount());


    }

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Examples of org.apache.commons.math.analysis.MonitoredFunction

        }
    }


    public void testInitialGuess() throws MathException {


        MonitoredFunction f = new MonitoredFunction(new QuinticFunction());
        UnivariateRealSolver solver = new BrentSolver();
        double result;


        // no guess
        result = solver.solve(f, 0.6, 7.0);
        assertEquals(result, 1.0, solver.getAbsoluteAccuracy());
        int referenceCallsCount = f.getCallsCount();
        assertTrue(referenceCallsCount >= 13);
 
        // invalid guess (it *is* a root, but outside of the range)
        try {
          result = solver.solve(f, 0.6, 7.0, 0.0);
          fail("an IllegalArgumentException was expected");
        } catch (IllegalArgumentException iae) {
            // expected behaviour
        } catch (Exception e) {
            fail("wrong exception caught: " + e.getMessage());
        }
 
        // bad guess
        f.setCallsCount(0);
        result = solver.solve(f, 0.6, 7.0, 0.61);
        assertEquals(result, 1.0, solver.getAbsoluteAccuracy());
        assertTrue(f.getCallsCount() > referenceCallsCount);
 
        // good guess
        f.setCallsCount(0);
        result = solver.solve(f, 0.6, 7.0, 0.999999);
        assertEquals(result, 1.0, solver.getAbsoluteAccuracy());
        assertTrue(f.getCallsCount() < referenceCallsCount);


        // perfect guess
        f.setCallsCount(0);
        result = solver.solve(f, 0.6, 7.0, 1.0);
        assertEquals(result, 1.0, solver.getAbsoluteAccuracy());
        assertEquals(0, solver.getIterationCount());
        assertEquals(1, f.getCallsCount());
 
    }

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Examples of org.apache.commons.math3.analysis.MonitoredFunction

        }
    }


    @Test
    public void testInitialGuess() {
        MonitoredFunction f = new MonitoredFunction(new QuinticFunction());
        BrentSolver solver = new BrentSolver();
        double result;


        // no guess
        result = solver.solve(100, f, 0.6, 7.0);
        Assert.assertEquals(result, 1.0, solver.getAbsoluteAccuracy());
        int referenceCallsCount = f.getCallsCount();
        Assert.assertTrue(referenceCallsCount >= 13);


        // invalid guess (it *is* a root, but outside of the range)
        try {
          result = solver.solve(100, f, 0.6, 7.0, 0.0);
          Assert.fail("a NumberIsTooLargeException was expected");
        } catch (NumberIsTooLargeException iae) {
            // expected behaviour
        }


        // bad guess
        f.setCallsCount(0);
        result = solver.solve(100, f, 0.6, 7.0, 0.61);
        Assert.assertEquals(result, 1.0, solver.getAbsoluteAccuracy());
        Assert.assertTrue(f.getCallsCount() > referenceCallsCount);


        // good guess
        f.setCallsCount(0);
        result = solver.solve(100, f, 0.6, 7.0, 0.999999);
        Assert.assertEquals(result, 1.0, solver.getAbsoluteAccuracy());
        Assert.assertTrue(f.getCallsCount() < referenceCallsCount);


        // perfect guess
        f.setCallsCount(0);
        result = solver.solve(100, f, 0.6, 7.0, 1.0);
        Assert.assertEquals(result, 1.0, solver.getAbsoluteAccuracy());
        Assert.assertEquals(1, solver.getEvaluations());
        Assert.assertEquals(1, f.getCallsCount());
    }

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Examples of org.apache.commons.math3.analysis.MonitoredFunction

        }
    }


    @Test
    public void testInitialGuess() {
        MonitoredFunction f = new MonitoredFunction(new QuinticFunction());
        BrentSolver solver = new BrentSolver();
        double result;


        // no guess
        result = solver.solve(100, f, 0.6, 7.0);
        Assert.assertEquals(result, 1.0, solver.getAbsoluteAccuracy());
        int referenceCallsCount = f.getCallsCount();
        Assert.assertTrue(referenceCallsCount >= 13);


        // invalid guess (it *is* a root, but outside of the range)
        try {
          result = solver.solve(100, f, 0.6, 7.0, 0.0);
          Assert.fail("a NumberIsTooLargeException was expected");
        } catch (NumberIsTooLargeException iae) {
            // expected behaviour
        }


        // bad guess
        f.setCallsCount(0);
        result = solver.solve(100, f, 0.6, 7.0, 0.61);
        Assert.assertEquals(result, 1.0, solver.getAbsoluteAccuracy());
        Assert.assertTrue(f.getCallsCount() > referenceCallsCount);


        // good guess
        f.setCallsCount(0);
        result = solver.solve(100, f, 0.6, 7.0, 0.999999);
        Assert.assertEquals(result, 1.0, solver.getAbsoluteAccuracy());
        Assert.assertTrue(f.getCallsCount() < referenceCallsCount);


        // perfect guess
        f.setCallsCount(0);
        result = solver.solve(100, f, 0.6, 7.0, 1.0);
        Assert.assertEquals(result, 1.0, solver.getAbsoluteAccuracy());
        Assert.assertEquals(1, solver.getEvaluations());
        Assert.assertEquals(1, f.getCallsCount());
    }

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Examples of org.apache.commons.math3.analysis.MonitoredFunction

        }
    }


    @Test
    public void testInitialGuess() {
        MonitoredFunction f = new MonitoredFunction(new QuinticFunction());
        BrentSolver solver = new BrentSolver();
        double result;


        // no guess
        result = solver.solve(100, f, 0.6, 7.0);
        Assert.assertEquals(result, 1.0, solver.getAbsoluteAccuracy());
        int referenceCallsCount = f.getCallsCount();
        Assert.assertTrue(referenceCallsCount >= 13);


        // invalid guess (it *is* a root, but outside of the range)
        try {
          result = solver.solve(100, f, 0.6, 7.0, 0.0);
          Assert.fail("a NumberIsTooLargeException was expected");
        } catch (NumberIsTooLargeException iae) {
            // expected behaviour
        }


        // bad guess
        f.setCallsCount(0);
        result = solver.solve(100, f, 0.6, 7.0, 0.61);
        Assert.assertEquals(result, 1.0, solver.getAbsoluteAccuracy());
        Assert.assertTrue(f.getCallsCount() > referenceCallsCount);


        // good guess
        f.setCallsCount(0);
        result = solver.solve(100, f, 0.6, 7.0, 0.999999);
        Assert.assertEquals(result, 1.0, solver.getAbsoluteAccuracy());
        Assert.assertTrue(f.getCallsCount() < referenceCallsCount);


        // perfect guess
        f.setCallsCount(0);
        result = solver.solve(100, f, 0.6, 7.0, 1.0);
        Assert.assertEquals(result, 1.0, solver.getAbsoluteAccuracy());
        Assert.assertEquals(1, solver.getEvaluations());
        Assert.assertEquals(1, f.getCallsCount());
    }

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