Enum DataLoaderError 

pub enum DataLoaderError {
    IoError(Error),
    CsvError(Error),
    JsonError(Error),
    DataError(DataError),
    FeatureMatrixError(FeatureMatrixError),
    UnsupportedFormat {
        format: String,
    },
    ParseError {
        field: String,
        value: String,
        message: String,
    },
    ValidationError(String),
    MissingColumn(String),
    InvalidFile(String),
    PreprocessingError(String),
    ParquetError(ParquetError),
}

Re-exported data loading utilities.

Provides dataset ingestion from multiple file formats with options for schema inference, type conversion, and data splitting. Errors that can occur during data loading operations.

This error type covers all failure modes: file I/O, parsing, validation, and preprocessing errors.

Variants

IoError(Error)

File system I/O error.

CsvError(Error)

CSV parsing error.

JsonError(Error)

JSON deserialization error.

DataError(DataError)

Data validation error (shape, NaN values, etc.).

FeatureMatrixError(FeatureMatrixError)

Feature matrix construction error.

UnsupportedFormat

Unsupported file format.

Fields

format: String

ParseError

Value parsing error with context.

Fields

field: String

value: String

message: String

ValidationError(String)

Data validation error with custom message.

MissingColumn(String)

Requested column not found in data.

InvalidFile(String)

File format or structure is invalid.

PreprocessingError(String)

Categorical encoding or preprocessing failure.

ParquetError(ParquetError)

Parquet file reading error.

Trait Implementations

impl Debug for DataLoaderError

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

Formats the value using the given formatter.

impl Display for DataLoaderError

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

Formats the value using the given formatter.

impl Error for DataLoaderError

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<DataError> for DataLoaderError

fn from(source: DataError) -> Self

Converts to this type from the input type.

impl From<DataLoaderError> for GBRTError

fn from(source: DataLoaderError) -> Self

Converts to this type from the input type.

impl From<Error> for DataLoaderError

fn from(source: Error) -> Self

Converts to this type from the input type.

impl From<Error> for DataLoaderError

fn from(source: Error) -> Self

Converts to this type from the input type.

impl From<Error> for DataLoaderError

fn from(source: Error) -> Self

Converts to this type from the input type.

impl From<FeatureMatrixError> for DataLoaderError

fn from(source: FeatureMatrixError) -> Self

Converts to this type from the input type.

impl From<ParquetError> for DataLoaderError

fn from(source: ParquetError) -> Self

Converts to this type from the input type.