Enum FitFailure 

pub(crate) enum FitFailure {
    Unconverged {
        residual: f64,
        iterations: usize,
    },
    Singular,
}

Why a least-squares fit produced no parameters.

Variants

Unconverged

The iteration cap was reached with this weighted residual norm still outstanding.

Fields

residual: f64

‖r‖₂ at the last iterate.

iterations: usize

The iterations spent.

Singular

No damping produced either an improving step or one small enough to count as converged — the normal equations were singular throughout, or the residual surface is not one this method can descend.

Trait Implementations

impl Clone for FitFailure

fn clone(&self) -> FitFailure

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for FitFailure

impl Debug for FitFailure

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

Formats the value using the given formatter.

impl PartialEq for FitFailure

fn eq(&self, other: &FitFailure) -> 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 FitFailure