Examples of org.jamesii.core.math.Matrix.transpose()

org.jamesii.core.math.Matrix.transpose()
Transpose (swap columns and rows) the matrix Note: This method doubles the amount of memory needed for holding the matrix! The internal matrix is not changed: the transposed matrix is returned as method result. @return transposed matrix

  public static Pair<Double, Double> calcMeanAndVariance(double[] weights,
      Double[] avgPerf, Double[][] covMat) {
    Matrix w = new Matrix(weights);
    Matrix s = new Matrix(covMat);
    Matrix r = new Matrix(avgPerf);
    return new Pair<>(r.transpose().mult(w).getElement(0, 0), w
        .transpose().mult(s.mult(w)).getElement(0, 0));
  }


  /**
   * Gets the avg and cov from performances.

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