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

      final double alpha = ((PlusMult) function).getMultiplicator();
      if (alpha == 0) {
        return this;
      } // nothing to do
      y.forEachNonZero(
          new IntIntDoubleFunction() {
            @Override
            public double apply(int i, int j, double value) {
              setQuick(i, j, getQuick(i, j) + alpha * value);
              return value;
            }

    public static DoubleMatrix2D normalizeSparseColumnL2(final DoubleMatrix2D A,
        final double [] work)
    {
        final double [] w = prepareWork(A, work);


        A.forEachNonZero(new IntIntDoubleFunction()
        {
            @Override
            public double apply(int row, int column, double value)
            {
                w[column] += value * value;
                return value;
            }
        });


        // Take the square root
        for (int c = 0; c < A.columns(); c++)
        {
            w[c] = Math.sqrt(w[c]);
        }


        // Normalize
        A.forEachNonZero(new IntIntDoubleFunction()
        {
            @Override
            public double apply(int row, int column, double value)
            {
                A.setQuick(row, column, value / w[column]);

Related Classes of org.apache.mahout.math.function.IntIntDoubleFunction

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