tensorlogic_infer/causal/
error.rs

1//! Error type for causal inference computations.
2//!
3//! Defines [`CausalError`] and its `Display` / `Error` trait implementations.
4
5// ---------------------------------------------------------------------------
6// Error type
7// ---------------------------------------------------------------------------
8
9/// Errors that can occur during causal inference computations.
10#[derive(Debug)]
11pub enum CausalError {
12    /// A named node was not found in the graph.
13    NodeNotFound(String),
14    /// A cycle was detected, violating the DAG requirement.
15    CycleDetected,
16    /// Sample dimension does not match the number of variables.
17    DimensionMismatch,
18    /// Not enough data for the requested computation.
19    InsufficientData,
20    /// No directed causal path exists between the specified nodes.
21    NoCausalPath,
22    /// A numerical computation failed (e.g. division by zero).
23    NumericalError(String),
24}
25
26impl std::fmt::Display for CausalError {
27    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
28        match self {
29            CausalError::NodeNotFound(name) => {
30                write!(f, "causal: node '{}' not found in graph", name)
31            }
32            CausalError::CycleDetected => {
33                write!(f, "causal: cycle detected — graph is not a DAG")
34            }
35            CausalError::DimensionMismatch => {
36                write!(
37                    f,
38                    "causal: sample dimension does not match number of variables"
39                )
40            }
41            CausalError::InsufficientData => {
42                write!(f, "causal: insufficient data for the requested computation")
43            }
44            CausalError::NoCausalPath => {
45                write!(
46                    f,
47                    "causal: no directed causal path between the specified nodes"
48                )
49            }
50            CausalError::NumericalError(msg) => {
51                write!(f, "causal: numerical error — {}", msg)
52            }
53        }
54    }
55}
56
57impl std::error::Error for CausalError {}
tensorlogic_infer/causal/error.rs

tensorlogic_infer/causal/
error.rs
