Enum PortfolioError 

pub enum PortfolioError {
    Problem(ProblemError),
    Matrix(MatrixError),
    Solver(SolverError),
    InvalidParameter(&'static str),
    Template(String),
    BudgetOutsideBounds {
        budget: f64,
        minimum: f64,
        maximum: f64,
    },
}

Errors from high-level portfolio construction and solution.

Variants

Problem(ProblemError)

Invalid covariance, objective, constraint, or box data.

Matrix(MatrixError)

A matrix could not be constructed.

Solver(SolverError)

Numerical solver setup failed.

InvalidParameter(&'static str)

A high-level scalar parameter is invalid.

Template(String)

A constraint template’s group, style, or bound data is inconsistent.

BudgetOutsideBounds

The budget cannot be met under the supplied box constraints.

Fields

budget: f64

Requested budget.

minimum: f64

Sum of lower bounds.

maximum: f64

Sum of upper bounds.

Trait Implementations

impl Debug for PortfolioError

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

Formats the value using the given formatter.

impl Display for PortfolioError

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

Formats the value using the given formatter.

impl Error for PortfolioError

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<MatrixError> for PortfolioError

fn from(source: MatrixError) -> Self

Converts to this type from the input type.

impl From<ProblemError> for PortfolioError

fn from(source: ProblemError) -> Self

Converts to this type from the input type.

impl From<SolverError> for PortfolioError

fn from(source: SolverError) -> Self

Converts to this type from the input type.