Struct Schema 

pub struct Schema { /* private fields */ }

Logical names and lookup tables for four-momentum, scalar, and weight columns.

Implementations

impl Schema

pub fn new( p4s: impl IntoIterator<Item = impl Into<Name>>, scalars: impl IntoIterator<Item = impl Into<Name>>, has_weight: bool, ) -> LadduDataResult<Self>

Validates and constructs a logical schema.

Errors

Returns LadduDataError when four-momentum or scalar column names are duplicated.

pub fn p4_index(&self, name: &str) -> Option<usize>

Returns the four-momentum column index for name.

pub fn scalar_index(&self, name: &str) -> Option<usize>

Returns the scalar column index for name.

pub fn p4s(&self) -> &[Name]

Returns four-momentum names in column order.

pub fn scalars(&self) -> &[Name]

Returns scalar names in column order.

pub fn has_weight(&self) -> bool

Returns whether events carry explicit weights.

pub fn n_p4s(&self) -> usize

Returns the number of four-momentum columns.

pub fn n_scalars(&self) -> usize

Returns the number of scalar columns.

pub fn require_p4(&self, name: &str) -> LadduDataResult<usize>

Requires and returns a four-momentum column index.

Errors

Returns LadduDataError::MissingColumn when name is not a four-momentum column.

pub fn require_scalar(&self, name: &str) -> LadduDataResult<usize>

Requires and returns a scalar column index.

Errors

Returns LadduDataError::MissingColumn when name is not a scalar column.

impl Schema

pub fn infer_from_columns<'a>( columns: impl IntoIterator<Item = ColumnInfo<'a>>, options: &SchemaInferenceOptions, ) -> LadduDataResult<Self>

Infers a logical schema from available physical columns.

Errors

Returns LadduDataError when required momentum components or weights are missing, names are ambiguous, or inferred logical names conflict.

pub fn physical_columns(&self, column_names: &SchemaColumnNames) -> Vec<Name>

Returns all physical columns required to store this schema.

pub fn validate_required_columns<'a>( &self, available: impl IntoIterator<Item = ColumnInfo<'a>>, options: &SchemaInferenceOptions, ) -> LadduDataResult<()>

Validates that all physical columns required by this schema are available.

Errors

Returns LadduDataError::MissingColumn when a required physical column is absent or has an unsupported type.

Trait Implementations

impl Clone for Schema

fn clone(&self) -> Schema

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Schema

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

Formats the value using the given formatter.

impl PartialEq for Schema

fn eq(&self, other: &Self) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.