chronix_analytics/forecast/
error.rs

1//! Forecast errors.
2
3/// Errors from forecast operations.
4#[derive(Debug, thiserror::Error)]
5pub enum ForecastError {
6    /// The input time-series has fewer observations than the model requires.
7    #[error("insufficient data: need at least {min} points, got {got}")]
8    InsufficientData {
9        /// Minimum number of data points required.
10        min: usize,
11        /// Number of data points actually provided.
12        got: usize,
13    },
14
15    /// A user-supplied parameter or input is invalid.
16    #[error("invalid input: {0}")]
17    InvalidInput(String),
18
19    /// The optimiser did not converge within the iteration limit.
20    #[error("convergence failed after {iterations} iterations")]
21    ConvergenceFailed {
22        /// Number of iterations completed before giving up.
23        iterations: usize,
24    },
25
26    /// A model hyper-parameter has an invalid value.
27    #[error("invalid parameter: {name} = {value} — {reason}")]
28    InvalidParams {
29        /// Name of the invalid parameter.
30        name: &'static str,
31        /// The invalid value that was supplied.
32        value: String,
33        /// Human-readable explanation of why the value is rejected.
34        reason: &'static str,
35    },
36
37    /// A computation produced NaN / Inf or similar numeric failure.
38    #[error("numerical instability: {0}")]
39    NumericalInstability(String),
40
41    /// The model has not been fitted yet.
42    #[error("model not fitted — call fit() before predict()")]
43    NotFitted,
44
45    /// An error forwarded from the compute engine.
46    #[error("compute error: {0}")]
47    Compute(#[from] crate::compute::ComputeError),
48}
chronix_analytics/forecast/error.rs

chronix_analytics/forecast/
error.rs
