Enum LMError 

pub enum LMError {
    DimensionMismatch {
        x0_len: usize,
        bounds_len: usize,
    },
    InvalidBounds {
        index: usize,
        lower: f64,
        upper: f64,
    },
    ResidualDimensionChanged {
        expected: usize,
        got: usize,
    },
    SingularJacobian,
}

Errors from the Levenberg-Marquardt solver.

Variants

DimensionMismatch

Lower and upper bounds have different lengths, or don’t match x0.

Fields

x0_len: usize

Length of x0

bounds_len: usize

Number of bound pairs

InvalidBounds

A lower bound exceeds its upper bound.

Fields

index: usize

Index of the bad pair

lower: f64

Lower bound

upper: f64

Upper bound

ResidualDimensionChanged

Residual function returned different sizes on successive calls.

Fields

expected: usize

First observed size

got: usize

New size

SingularJacobian

The Jacobian-derived system is singular (QR rank-deficient).

Trait Implementations

impl Debug for LMError

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

Formats the value using the given formatter.

impl Display for LMError

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

Formats the value using the given formatter.

impl Error for LMError

fn source(&self) -> Option<&(dyn Error + 'static)>

Returns the lower-level source of this error, if any.

fn description(&self) -> &str

👎Deprecated since 1.42.0:

use the Display impl or to_string()

fn cause(&self) -> Option<&dyn Error>

👎Deprecated since 1.33.0:

replaced by Error::source, which can support downcasting

fn provide<'a>(&'a self, request: &mut Request<'a>)

🔬This is a nightly-only experimental API. (error_generic_member_access)

Provides type-based access to context intended for error reports.