Package org.apache.commons.math.analysis.integration

Examples of org.apache.commons.math.analysis.integration.UnivariateRealIntegrator.integrate()

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    k[k.length - 1] = n - lastJ;

    // now verify probabilities by comparing to integral of pdf
    UnivariateRealIntegrator integrator = new RombergIntegrator();
    for (int i = 0; i < xs.length - 1; i++) {
      double delta = integrator.integrate(new UnivariateRealFunction() {
        public double value(double v) {
          return dist.pdf(v);
        }
      }, xs[i], xs[i + 1]);
      Assert.assertEquals(delta, p[i + 1], 1.0e-6);
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    k[k.length - 1] = n - lastJ;

    // now verify probabilities by comparing to integral of pdf
    UnivariateRealIntegrator integrator = new RombergIntegrator();
    for (int i = 0; i < xs.length - 1; i++) {
      double delta = integrator.integrate(new UnivariateRealFunction() {
        @Override
        public double value(double v) {
          return dist.pdf(v);
        }
      }, xs[i], xs[i + 1]);
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