Struct PerClassTable 

pub struct PerClassTable {

    pub category_id: Vec<i64>,
    pub category_name: Vec<String>,
    pub ap: Vec<Option<f64>>,
    pub ap50: Vec<Option<f64>>,
    pub ap75: Vec<Option<f64>>,
    pub ap_s: Vec<Option<f64>>,
    pub ap_m: Vec<Option<f64>>,
    pub ap_l: Vec<Option<f64>>,
    pub ar_max_1: Vec<Option<f64>>,
    pub ar_max_10: Vec<Option<f64>>,
    pub ar_max_100: Vec<Option<f64>>,
    pub n_gt: Vec<u32>,
    pub n_dt: Vec<u32>,
}

One row per category — mirrors summarize_detection’s 12-stat layout, plus support counts and labels.

Numeric columns are Option<f64>; the -1.0 sentinel (quirk C5) maps to None here so any non-Arrow consumer sees an honest type. Schema is pinned (see Arrow golden in tests/python/tables/schemas/per_class.json).

Fields

category_id: Vec<i64>

COCO category id, or COLLAPSED_CATEGORY_SENTINEL if the upstream evaluator ran with use_cats=false.

category_name: Vec<String>

Human-readable category name from crate::dataset::CategoryMeta::name. The single-row collapsed case carries "(all categories)".

ap: Vec<Option<f64>>

AP@.50:.95, area=all, maxDets=largest. None for cells with no data (quirk C5).

ap50: Vec<Option<f64>>

AP@.50, area=all, maxDets=largest.

ap75: Vec<Option<f64>>

AP@.75, area=all, maxDets=largest.

ap_s: Vec<Option<f64>>

AP@.50:.95, area=small, maxDets=largest.

ap_m: Vec<Option<f64>>

AP@.50:.95, area=medium, maxDets=largest.

ap_l: Vec<Option<f64>>

AP@.50:.95, area=large, maxDets=largest.

ar_max_1: Vec<Option<f64>>

AR@.50:.95, area=all, maxDets=1.

ar_max_10: Vec<Option<f64>>

AR@.50:.95, area=all, maxDets=10.

ar_max_100: Vec<Option<f64>>

AR@.50:.95, area=all, maxDets=100.

n_gt: Vec<u32>

Non-ignore GT count for this category, summed across images at area=all. Inferred from Accumulated’s K-axis size and the dataset’s annotation list.

n_dt: Vec<u32>

DT count for this category, summed across images at area=all. Inferred from the dataset’s detection list (when threaded through) or from upstream EvalGrid cells (when called from streaming).

Implementations

impl PerClassTable

pub const COLUMN_NAMES: &'static [&'static str]

Names of every column in pinned order. Matches the Arrow schema emitted by vernier-ffi.

pub fn len(&self) -> usize

Number of rows.

pub fn is_empty(&self) -> bool

True when no rows.

Trait Implementations

impl Clone for PerClassTable

fn clone(&self) -> PerClassTable

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for PerClassTable

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

Formats the value using the given formatter.