greeners 0.1.1

A high-performance native Rust library for econometrics (OLS, GMM, Logit/Probit, DiD, Time Series).
Documentation 
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use thiserror::Error;

/// Custom error types for the Greeners library.
#[derive(Error, Debug)]
pub enum GreenersError {
    /// Error thrown when input dimensions (shapes) do not match expectation.
    #[error("Dimension mismatch: {0}")]
    ShapeMismatch(String),

    /// Error thrown during matrix inversion if the matrix is singular (determinant is zero).
    #[error("Singular matrix encountered. The matrix cannot be inverted.")]
    SingularMatrix,

    /// Error thrown when statistical distributions cannot be initialized
    /// (e.g., degrees of freedom <= 0).
    #[error("Statistical distribution error (optimization/initialization failed)")]
    OptimizationFailed,

    /// Wrapper for errors coming from the ndarray-linalg backend.
    #[error("Linear Algebra backend error: {0}")]
    LinalgError(#[from] ndarray_linalg::error::LinalgError),
}