Enum SurvivalConstructionError 

pub enum SurvivalConstructionError {
    InvalidConfig {
        reason: String,
    },
    MissingColumn {
        reason: String,
    },
    IncompatibleDimensions {
        reason: String,
    },
    DataValidationFailed {
        reason: String,
    },
    BasisConstructionFailed {
        reason: String,
    },
    UnsupportedDistribution {
        reason: String,
    },
}

Structured failure surface for survival-model construction helpers (parse_*, baseline-config builders, time-basis construction). Every variant carries a free-form reason: String payload; Display emits that payload verbatim, so converting to String via the From impl produces text byte-equivalent to the pre-refactor Err(format!(...)) call sites that were the only producers in this module.

The public CLI-input parsers (parse_survival_distribution, parse_survival_likelihood_mode, parse_survival_baseline_config) keep their Result<_, String> signatures — string is the natural failure type for free-form user input — and route through this enum internally via From<SurvivalConstructionError> for String.

Variants

InvalidConfig

User-supplied configuration is malformed or out of range (knot counts, anchor offsets, derivative guards, ranks).

Fields

reason: String

MissingColumn

A required column or block of metadata is absent (e.g. saved survival ispline keep_cols, baseline target on a saved fit).

Fields

reason: String

IncompatibleDimensions

Per-row / per-column shape disagreement (entry/exit lengths, penalty rank vs basis width, basis vs coefficient counts).

Fields

reason: String

DataValidationFailed

Numeric / domain rejection: non-finite ratios, non-positive survival times, monotonicity violations, ispline-derivative underflow.

Fields

reason: String

BasisConstructionFailed

Underlying basis / penalty builder rejected the construction request (invalid spline order, ispline keep_cols out of range, internal empty ispline time basis).

Fields

reason: String

UnsupportedDistribution

User-named distribution / likelihood-mode / baseline target / time-basis kind is not one we recognise.

Fields

reason: String

Trait Implementations

impl Clone for SurvivalConstructionError

fn clone(&self) -> SurvivalConstructionError

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for SurvivalConstructionError

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

Formats the value using the given formatter.

impl Display for SurvivalConstructionError

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

Formats the value using the given formatter.

impl Error for SurvivalConstructionError

fn source(&self) -> Option<&(dyn Error + 'static)>

Returns the lower-level source of this error, if any.

fn description(&self) -> &str

👎Deprecated since 1.42.0:

use the Display impl or to_string()

fn cause(&self) -> Option<&dyn Error>

👎Deprecated since 1.33.0:

replaced by Error::source, which can support downcasting

fn provide<'a>(&'a self, request: &mut Request<'a>)

🔬This is a nightly-only experimental API. (error_generic_member_access)

Provides type-based access to context intended for error reports.

impl From<SurvivalConstructionError> for String

fn from(err: SurvivalConstructionError) -> String

Converts to this type from the input type.