Enum Error 

pub enum Error {
    InvalidParameter {
        name: &'static str,
        value: f64,
        reason: &'static str,
    },
    InvalidProbability(f64),
    InvalidMonth(u8),
    Data(String),
}

Why an operation could not be carried out.

Variants

InvalidParameter

A model or distribution parameter is outside its valid domain.

Fields

name: &'static str

value: f64

reason: &'static str

InvalidProbability(f64)

A probability argument is NaN or outside [0, 1].

InvalidMonth(u8)

A month number is outside 1 to 12.

Data(String)

Input data cannot be used as given: a missing or mistyped column, a factor level not seen in training, mismatched lengths. The message names what is wrong.

Trait Implementations

impl Clone for Error

fn clone(&self) -> Error

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Error

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

Formats the value using the given formatter.

impl Display for Error

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

Formats the value using the given formatter.

impl Error for Error

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 Error

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for Error