Struct ReducedActivityReport 

pub struct ReducedActivityReport {
    pub mu: f64,
    pub var: Vec<usize>,
    pub status: Vec<i8>,
    pub ratio: Vec<f64>,
    pub q_reduced: Vec<f64>,
    pub q_sign: Vec<i8>,
    pub sigma: Vec<f64>,
}

One coordinate’s activity re-measured against the curvature that actually generates its multiplier, rather than against the Hessian diagonal (gh#763).

Parallel arrays, one entry per requested variable, in the order they were requested. See reduced_activity for what the quantities mean.

Fields

mu: f64

Barrier parameter of the converged iterate, as ActivityReport::mu.

var: Vec<usize>

The user-space variable index each entry answers about.

status: Vec<i8>

Status from the same rule ActivityReport::var_status uses, applied to Self::ratio.

ratio: Vec<f64>

Σ_i / |q_i^red|. NaN where nothing was classified.

q_reduced: Vec<f64>

The reduced curvature q_i^red itself, signed, in natural (unscaled) units like ActivityReport::var_sigma. NaN for a FIXED variable and where the factor offers no reduced curvature (see reduced_activity).

q_sign: Vec<i8>

Sign of Self::q_reduced (−1, 0, +1); the absolute value is what the ratio divides by.

sigma: Vec<f64>

Σ_i, natural units, identical to the same variable’s entry in ActivityReport::var_sigma.

Trait Implementations

impl Clone for ReducedActivityReport

fn clone(&self) -> ReducedActivityReport

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ReducedActivityReport

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

Formats the value using the given formatter.