Enum HmcError 

pub enum HmcError {
    NonFiniteState {
        reason: String,
    },
    InvalidConfig {
        reason: String,
    },
    DimensionMismatch {
        reason: String,
    },
    FirthUnsupported {
        reason: String,
    },
    LinkMismatch {
        reason: String,
    },
    UnsupportedFamily {
        reason: String,
    },
    SamplingFailed {
        reason: String,
    },
}

Typed error variants for the HMC / NUTS sampling module.

External-facing helpers in this module continue to return Result<_, String>; this enum is materialized internally and converted at the public boundary via .map_err(String::from) so that the error text remains byte-identical to the previous format! output.

Variants

NonFiniteState

Sampler state (penalty / Hessian / mode / posterior values) contains NaN or Inf where finiteness is required.

Fields

reason: String

InvalidConfig

Configuration value (e.g. target_accept, unit-weight requirement) is out of range or otherwise invalid.

Fields

reason: String

DimensionMismatch

Dimensions of the supplied matrices / vectors are inconsistent.

Fields

reason: String

FirthUnsupported

Firth/Jeffreys correction was requested for a family that does not support it.

Fields

reason: String

LinkMismatch

Inverse-link state does not match the requested likelihood family in the joint (β, ρ) sampler.

Fields

reason: String

UnsupportedFamily

Likelihood family is not implemented in the current sampling path.

Fields

reason: String

SamplingFailed

Sampling produced no usable output (empty kept set, non-finite summary statistic, etc.).

Fields

reason: String

Trait Implementations

impl Clone for HmcError

fn clone(&self) -> HmcError

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for HmcError

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

Formats the value using the given formatter.

impl Display for HmcError

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

Formats the value using the given formatter.

impl From<HmcError> for String

fn from(err: HmcError) -> String

Converts to this type from the input type.