Enum FitError 

pub enum FitError {
    InsufficientData {
        need: usize,
        got: usize,
    },
    Underdetermined {
        n_params: usize,
        n_data: usize,
    },
    OptimizationFailed(String),
    LengthMismatch {
        expected: usize,
        got: usize,
    },
    InvalidParameter(String),
    SingularJacobian,
}

Error type for curve fitting operations.

Variants

InsufficientData

Not enough data points.

Fields

need: usize

got: usize

Underdetermined

More parameters than data points.

Fields

n_params: usize

n_data: usize

OptimizationFailed(String)

Optimization failed to converge.

LengthMismatch

Dimension mismatch between x and y data.

Fields

expected: usize

got: usize

InvalidParameter(String)

Invalid parameter (e.g., negative polynomial degree).

SingularJacobian

Singular or near-singular Jacobian (covariance unreliable).

Trait Implementations

impl Clone for FitError

fn clone(&self) -> FitError

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for FitError

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

Formats the value using the given formatter.

impl Display for FitError

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

Formats the value using the given formatter.

impl Error for FitError

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.

impl From<FitError> for NumraError

fn from(e: FitError) -> Self

Converts to this type from the input type.

impl PartialEq for FitError

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