Package org.apache.mahout.math

Examples of org.apache.mahout.math.DenseVector.normalize()

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      DoubleMatrix1D ejCol = eigenVects.viewColumn(basis.numRows() - i - 1);
      for (int j = 0; j < ejCol.size(); j++) {
        double d = ejCol.getQuick(j);
        realEigen.assign(basis.getRow(j), new PlusMult(d));
      }
      realEigen = realEigen.normalize();
      eigenVectors.assignRow(i, realEigen);
      log.info("Eigenvector {} found with eigenvalue {}", i, eigenVals.get(i));
      eigenValues.add(eigenVals.get(i));
    }
    log.info("LanczosSolver finished.");
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    final DoubleFunction random = Functions.random();
    List<Vector> basisVectors = Lists.newArrayList();
    for (int i = 0; i < numProjections; ++i) {
      Vector basisVector = new DenseVector(numDimensions);
      basisVector.assign(random);
      basisVector.normalize();
      basisVectors.add(basisVector);
    }
    return  basisVectors;
  }
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      DoubleMatrix1D ejCol = eigenVects.viewColumn(basis.numRows() - i - 1);
      for (int j = 0; j < ejCol.size(); j++) {
        double d = ejCol.getQuick(j);
        realEigen.assign(basis.getRow(j), new PlusMult(d));
      }
      realEigen = realEigen.normalize();
      eigenVectors.assignRow(i, realEigen);
      log.info("Eigenvector {} found with eigenvalue {}", i, eigenVals.get(i));
      eigenValues.add(eigenVals.get(i));
    }
    log.info("LanczosSolver finished.");
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    DoubleFunction random = new Normal();
    List<Vector> basisVectors = Lists.newArrayList();
    for (int i = 0; i < projectedVectorSize; ++i) {
      Vector basisVector = new DenseVector(vectorSize);
      basisVector.assign(random);
      basisVector.normalize();
      basisVectors.add(basisVector);
    }
    return basisVectors;
  }
}
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    DoubleFunction random = new Normal();
    List<Vector> basisVectors = Lists.newArrayList();
    for (int i = 0; i < projectedVectorSize; ++i) {
      Vector basisVector = new DenseVector(vectorSize);
      basisVector.assign(random);
      basisVector.normalize();
      basisVectors.add(basisVector);
    }
    return basisVectors;
  }
}
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