Struct NelderMeadConfig 

pub struct NelderMeadConfig {
    pub xatol: f64,
    pub fatol: f64,
    pub max_iter: usize,
    pub initial_step_frac: f64,
    pub initial_step_abs: f64,
}

Nelder-Mead configuration.

Fields

xatol: f64

Absolute tolerance on vertex displacement.

fatol: f64

Absolute tolerance on objective range across the simplex.

max_iter: usize

Maximum number of simplex iterations (each iteration = at most a constant number of objective evaluations).

initial_step_frac: f64

Initial simplex edge length, used as a signed multiplier on each coordinate: step_i = initial_step_frac * x0_i (so 0.05 gives a 5 % perturbation in the direction of the coordinate’s sign). When |x0_i| < 1e-8 the fallback initial_step_abs is used instead. Note: this is NOT initial_step_frac * max(|x0|, 1) — for |x0| < 1 the perturbation is therefore smaller than initial_step_frac itself.

initial_step_abs: f64

Small absolute initial step for parameters whose |x_0| < 1e-8.

Trait Implementations

impl Clone for NelderMeadConfig

fn clone(&self) -> NelderMeadConfig

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for NelderMeadConfig

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

Formats the value using the given formatter.

impl Default for NelderMeadConfig

fn default() -> Self

Returns the “default value” for a type.