Enum HessianResult 

pub enum HessianResult {
    Analytic(Array2<f64>),
    Operator(Arc<dyn OuterHessianOperator>),
    Unavailable,
}

Explicit Hessian result replacing Option<Array2<f64>>.

Variants

Analytic(Array2<f64>)

Analytic Hessian was computed and returned.

Operator(Arc<dyn OuterHessianOperator>)

Analytic Hessian is available as an exact Hessian-vector product.

Unavailable

No analytic Hessian available for this model path.

Implementations

impl HessianResult

pub fn is_analytic(&self) -> bool

Returns true if an analytic Hessian is present in any exact form.

pub fn dim(&self) -> Option<usize>

pub fn materialize_dense(&self) -> Result<Option<Array2<f64>>, String>

Trait Implementations

impl Clone for HessianResult

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 HessianResult

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

Formats the value using the given formatter.