Examples of ULP

org.apache.commons.math3.analysis.function.Ulp
{@code ulp} function. @since 3.0
org.apache.pig.piggybank.evaluation.math.ULP
math.ULP implements a binding to the Java function {@link java.lang.Math#ulp(double) Math.ulp(double)}. Given a single data atom it Returns the size of an ulp of the argument.

Parameters:

value - DataAtom [double].

Return Value:

DataAtom [double]

Return Schema:

ULP_inputSchema

Example:

register math.jar; A = load 'mydata' using PigStorage() as ( float1 ); B = foreach A generate float1, math.ULP(float1);

@see Math#ulp(double) @see @author ajay garg

Examples of org.apache.commons.math3.analysis.function.Ulp

        return new UnivariateFunction[] {
            new Power(2.0), new Exp(), new Expm1(), new Log(), new Log10(),
            new Log1p(), new Cosh(), new Sinh(), new Tanh(), new Cos(),
            new Sin(), new Tan(), new Acos(), new Asin(), new Atan(),
            new Inverse(), new Abs(), new Sqrt(), new Cbrt(), new Ceil(),
            new Floor(), new Rint(), new Signum(), new Ulp()
        };
    }

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Examples of org.apache.commons.math3.analysis.function.Ulp

        return new UnivariateFunction[] {
            new Power(2.0), new Exp(), new Expm1(), new Log(), new Log10(),
            new Log1p(), new Cosh(), new Sinh(), new Tanh(), new Cos(),
            new Sin(), new Tan(), new Acos(), new Asin(), new Atan(),
            new Inverse(), new Abs(), new Sqrt(), new Cbrt(), new Ceil(),
            new Floor(), new Rint(), new Signum(), new Ulp()
        };
    }

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Examples of org.apache.commons.math3.analysis.function.Ulp

        assertClose("compare vectors" ,result_mapSignumToSelf,v_mapSignumToSelf.toArray(),normTolerance);




        // Is with the used resolutions of limited value as test
        //octave =  ???
        RealVector v_mapUlp = ceil_v.map(new Ulp());
        double[] result_mapUlp = {2.220446049250313E-16d,1.1102230246251565E-16d,2.220446049250313E-16d};
        assertClose("compare vectors" ,result_mapUlp,v_mapUlp.toArray(),normTolerance);


        //octave = ???
        RealVector v_mapUlpToSelf = ceil_v.copy();
        v_mapUlpToSelf.mapToSelf(new Ulp());
        double[] result_mapUlpToSelf = {2.220446049250313E-16d,1.1102230246251565E-16d,2.220446049250313E-16d};
        assertClose("compare vectors" ,result_mapUlpToSelf,v_mapUlpToSelf.toArray(),normTolerance);
    }

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Examples of org.apache.commons.math3.analysis.function.Ulp

        assertClose("compare vectors" ,result_mapSignumToSelf,v_mapSignumToSelf.toArray(),normTolerance);




        // Is with the used resolutions of limited value as test
        //octave =  ???
        RealVector v_mapUlp = ceil_v.map(new Ulp());
        double[] result_mapUlp = {2.220446049250313E-16d,1.1102230246251565E-16d,2.220446049250313E-16d};
        assertClose("compare vectors" ,result_mapUlp,v_mapUlp.toArray(),normTolerance);


        //octave = ???
        RealVector v_mapUlpToSelf = ceil_v.copy();
        v_mapUlpToSelf.mapToSelf(new Ulp());
        double[] result_mapUlpToSelf = {2.220446049250313E-16d,1.1102230246251565E-16d,2.220446049250313E-16d};
        assertClose("compare vectors" ,result_mapUlpToSelf,v_mapUlpToSelf.toArray(),normTolerance);
    }

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Examples of org.apache.pig.piggybank.evaluation.math.ULP

          double actual = (new Double(output.strval())).doubleValue();
          assertEquals(actual, expected, delta);
   }
   
   public void testULP() throws Exception{
       EvalFunc<DataAtom> ULP = new ULP();
          Tuple tup = new Tuple(1);
          tup.setField(0, 0.5);
          DataAtom output = new DataAtom();
          ULP.exec(tup, output);
          double expected = Math.ulp(0.5);
          double actual = (new Double(output.strval())).doubleValue();
          assertEquals(actual, expected, delta);
   }

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