CompositeDataLoader<TSource,TLastTransformer> Class

Definition

Namespace:

Microsoft.ML.Data

Assembly:

Microsoft.ML.Data.dll

Package:

Microsoft.ML v3.0.1

This class represents a data loader that applies a transformer chain after loading. It also has methods to save itself to a repository.

public sealed class CompositeDataLoader<TSource,TLastTransformer> : IDisposable, Microsoft.ML.IDataLoader<TSource> where TLastTransformer : class, ITransformer

type CompositeDataLoader<'Source, 'LastTransformer (requires 'LastTransformer : null and 'LastTransformer :> ITransformer)> = class
    interface IDataLoader<'Source>
    interface ICanSaveModel
    interface IDisposable

Public NotInheritable Class CompositeDataLoader(Of TSource, TLastTransformer)
Implements IDataLoader(Of TSource), IDisposable

Type Parameters

TSource

TLastTransformer

Inheritance

Object

CompositeDataLoader<TSource,TLastTransformer>

Implements

ICanSaveModel IDataLoader<TSource> IDisposable

Constructors

CompositeDataLoader<TSource,TLastTransformer>(IDataLoader<TSource>, TransformerChain<TLastTransformer>)

Fields

Loader	The underlying data loader.
Transformer	The chain of transformers (possibly empty) that are applied to data upon loading.

Methods

AppendTransformer<TNewLast>(TNewLast)	Append a new transformer to the end.
Dispose()
GetOutputSchema()
Load(TSource)	Produce the data view from the specified input. Note that IDataView's are lazy, so no actual loading happens here, just schema validation.

Explicit Interface Implementations

ICanSaveModel.Save(ModelSaveContext)

Extension Methods

Preview<TSource>(IDataLoader<TSource>, TSource, Int32)	Preview an effect of the loader on a given source.
Append<TSource,TTrans>(IDataLoader<TSource>, TTrans)	Create a new composite loader, by appending a transformer to this data loader.
Append<TSource,TTrans>(IDataLoader<TSource>, IEstimator<TTrans>)	Create a new composite loader estimator, by appending an estimator to this data loader.