Enum CobylaRhoBegin 

pub enum CobylaRhoBegin {
    All(f64),
    PerDim(Vec<f64>),
}

Initial trust-region radius spec.

Powell’s COBYLA accepts a single rhobeg applied to all variables, or per-dimension initial steps. For autoeq’s PEQ problem the parameters differ in scale by orders of magnitude (log10-frequency span ~0.5, gain span ~24 dB), so per-dimension steps are recommended.

Variants

All(f64)

Same initial step for every dimension.

PerDim(Vec<f64>)

Per-dimension initial steps. Length must equal x0.len().

Trait Implementations

impl Clone for CobylaRhoBegin

fn clone(&self) -> CobylaRhoBegin

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for CobylaRhoBegin

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

Formats the value using the given formatter.

impl Default for CobylaRhoBegin

fn default() -> Self

Returns the “default value” for a type.