antecedent_stats/
error.rs

1//! Stats-layer errors.
2//!
3//! SPDX-License-Identifier: MIT OR Apache-2.0
4
5use thiserror::Error;
6
7/// Statistical / linear algebra errors.
8#[derive(Clone, Debug, Eq, PartialEq, Error)]
9#[non_exhaustive]
10pub enum StatsError {
11    /// Shape mismatch.
12    #[error("shape error: {message}")]
13    Shape {
14        /// Context.
15        message: &'static str,
16    },
17    /// Rank deficiency / singular design.
18    #[error("rank deficient: rank={rank} ncols={ncols}")]
19    RankDeficient {
20        /// Detected rank.
21        rank: usize,
22        /// Number of columns.
23        ncols: usize,
24    },
25    /// Materially non-positive variance after inclusion–exclusion (not FP noise).
26    #[error("non-positive variance: {message}")]
27    NonPositiveVariance {
28        /// Context.
29        message: &'static str,
30    },
31    /// Requested option is not implemented on this code path.
32    #[error("unsupported: {message}")]
33    Unsupported {
34        /// Context.
35        message: &'static str,
36    },
37    /// Backend failure.
38    #[error("backend error: {0}")]
39    Backend(String),
40}
antecedent_stats/error.rs

antecedent_stats/
error.rs
