public static MatrixOps newInstance()

in src/main/java/org/apache/datasketches/vector/decomposition/MatrixOps.java [60:79]

• 16 lines of code
• 3 McCabe index (conditional complexity)

  public static MatrixOps newInstance(final Matrix A, final SVDAlgo algo, final int k) {
    final int n = (int) A.getNumRows();
    final int d = (int) A.getNumColumns();

    final MatrixOps mo;

    switch (A.getMatrixType()) {
      case OJALGO:
        mo = new MatrixOpsImplOjAlgo(n, d, algo, k);
        break;

      default:
        throw new IllegalArgumentException("Unknown MatrixType: " + A.getMatrixType().toString());
    }

    if (algo == SVDAlgo.SISVD) {
      mo.setNumSISVDIter((int) Math.ceil(Math.log(d)));
    }
    return mo;
  }