Package de.lmu.ifi.dbs.elki.math.linearalgebra

Examples of de.lmu.ifi.dbs.elki.math.linearalgebra.Vector.normalize()

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  protected double angle(NumberVector<?, ?> v1, NumberVector<?, ?> v2) {
    if(v1 instanceof SparseNumberVector<?, ?> && v2 instanceof SparseNumberVector<?, ?>) {
      return angleSparse((SparseNumberVector<?, ?>) v1, (SparseNumberVector<?, ?>) v2);
    }
    Vector m1 = v1.getColumnVector();
    m1.normalize();
    Vector m2 = v2.getColumnVector();
    m2.normalize();
    return m1.transposeTimes(m2);
  }
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      return angleSparse((SparseNumberVector<?, ?>) v1, (SparseNumberVector<?, ?>) v2);
    }
    Vector m1 = v1.getColumnVector();
    m1.normalize();
    Vector m2 = v2.getColumnVector();
    m2.normalize();
    return m1.transposeTimes(m2);
  }

  /**
   * Compute the angle for sparse vectors.
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