Enum DistributionError 

pub enum DistributionError {
    NotFinite {
        parameter: &'static str,
    },
    NotPositive {
        parameter: &'static str,
        got: f64,
    },
    Unordered {
        parameter: &'static str,
        relation: &'static str,
        low: Bound<f64>,
        high: Bound<f64>,
        got: f64,
    },
}

Why a distribution’s parameters were refused — the parameter, and the rule it breaks.

Variants

NotFinite

A parameter is NaN or infinite.

Fields

parameter: &'static str

The parameter’s name ("sigma", "shape", …).

NotPositive

A parameter that must be greater than 0 is not (σ, a rate, a shape, a scale, degrees of freedom, PERT λ).

Fields

parameter: &'static str

The parameter’s name.

got: f64

The value given.

Unordered

A parameter outside the range the others leave it (min < max, min ≤ mode ≤ max).

Fields

parameter: &'static str

The parameter that falls outside the order ("max" when min ≥ max, "mode" when it lies outside [min, max]).

relation: &'static str

The order that must hold, as text.

low: Bound<f64>

The lower end of the range the parameter must lie in: max is above min (Excluded(min)), mode at least min.

high: Bound<f64>

The upper end: Unbounded for max, Included(max) for mode.

got: f64

The value given.

Trait Implementations

impl Clone for DistributionError

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for DistributionError

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

Formats the value using the given formatter.

impl Display for DistributionError

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

Formats the value using the given formatter.

impl Error for DistributionError

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 PartialEq for DistributionError

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for DistributionError