Examples of DoubleFunction

cern.colt.function.DoubleFunction
Interface that represents a function object: a function that takes a single argument and returns a single value.
org.apache.hama.commons.math.DoubleFunction
A double double function takes two arguments. A vector or matrix can apply the double function to each element.
org.apache.hama.ml.math.DoubleFunction
A double double function takes two arguments. A vector or matrix can apply the double function to each element.
org.apache.mahout.math.function.DoubleFunction
Interface that represents a function object: a function that takes a single argument and returns a single value. @see org.apache.mahout.math.map

Examples of org.apache.mahout.math.function.DoubleFunction

          private final Random random = RandomUtils.getRandom();
          @Override
          public Vector apply(Integer dummy) {
            Vector result =
                type == VectorType.SPARSE ? new RandomAccessSparseVector(numItems) : new DenseVector(numItems);
            result.assign(new DoubleFunction(){
              @Override
              public double apply(double ignored) {
                return random.nextDouble();
              }
            });

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Examples of org.apache.mahout.math.function.DoubleFunction

      // finish off pending regularization
      model.close();


      Matrix beta = model.getBeta();
      maxBeta = beta.aggregate(Functions.MAX, Functions.ABS);
      nonZeros = beta.aggregate(Functions.PLUS, new DoubleFunction() {
        @Override
        public double apply(double v) {
          return Math.abs(v) > 1.0e-6 ? 1 : 0;
        }
      });
      positive = beta.aggregate(Functions.PLUS, new DoubleFunction() {
        @Override
        public double apply(double v) {
          return v > 0 ? 1 : 0;
        }
      });

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