Struct SrcErrorEstimate 

pub struct SrcErrorEstimate {
    pub error: f64,
    pub norm: f64,
}

Small-matrix diagnostics produced by the successive randomized compression stopping estimator.

error is the Appendix C randomized residual estimate and norm is the corresponding Frobenius norm estimate. Both values use the sketch width as their normalization factor.

Examples

use tensor4all_tensorbackend::{src_error_estimate, Matrix};

let r = Matrix::from_col_major_vec(1, 1, vec![2.0_f64]);
let estimate = src_error_estimate(&r).unwrap();
assert!((estimate.error - 2.0).abs() < 1.0e-12);
assert!((estimate.norm - 2.0).abs() < 1.0e-12);

Fields

error: f64

Estimated residual magnitude from the inverse-adjoint QR factor.

norm: f64

Estimated norm of the sketched tensor from the QR factor.

Trait Implementations

impl Clone for SrcErrorEstimate

fn clone(&self) -> SrcErrorEstimate

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Copy for SrcErrorEstimate

impl Debug for SrcErrorEstimate

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl PartialEq for SrcErrorEstimate

fn eq(&self, other: &SrcErrorEstimate) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl StructuralPartialEq for SrcErrorEstimate