Enum SimplexExpansionMethod

pub enum SimplexExpansionMethod {
    GreedyMinimization,
    GreedyExpansion,
}

Selects the expansion method used in the Nelder-Mead algorithm. See Lagarias et al.¹ for more details.

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1. J. C. Lagarias, J. A. Reeds, M. H. Wright, and P. E. Wright, ‘Convergence Properties of the Nelder–Mead Simplex Method in Low Dimensions’, SIAM Journal on Optimization, vol. 9, no. 1, pp. 112–147, 1998. ↩

Variants

GreedyMinimization

Greedy minimization will calculate both a reflected an expanded point in an expansion step but will return the one that gives the best minimum.

GreedyExpansion

Greedy expansion will calculate both a reflected and expanded point in an expansion step but will return the expanded point always, even if the reflected point is a better minimum.

Trait Implementations

impl Clone for SimplexExpansionMethod

fn clone(&self) -> SimplexExpansionMethod

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for SimplexExpansionMethod

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

Formats the value using the given formatter.

impl Default for SimplexExpansionMethod

fn default() -> SimplexExpansionMethod

Returns the “default value” for a type.