Mojo struct

ColPivHouseholderQR

@memory_only
struct ColPivHouseholderQR

Fields

• m_qr (Mat)
• m_hCoeffs (Vec)
• m_colsPermutation (IVec)
• m_rows (Int)
• m_cols (Int)
• m_maxPivot (RealScalar)

Implemented traits

AnyType, Deinitable, Movable

Methods

__init__

fn def __init__(out self)

Args:

• self (Self)

Returns:

Self

compute

fn def compute(mut self, A: Mat)

Args:

• self (Self)
• A (Mat)

matrixR

fn def matrixR(self) -> Mat

The cols x cols (== m_cols x m_cols) upper-triangular R factor of A*P, as a fresh dense copy.

Args:

• self (Self)

Returns:

Mat

apply_q_on_left

fn def apply_q_on_left(self, mut M: Mat)

M <- Q * M, i.e. H_0 * H_1 * ... * H_{m_cols-1} * M — reflectors applied in reverse order, same pattern as UpperBidiagonalization.apply_u_on_left / bdcsvd.HouseholderQR.

Args:

• self (Self)
• M (Mat)