/// <summary>
/// Create an estimator chain by appending an estimator to an estimator.
/// </summary>
public static EstimatorChain <TTrans> Append <TTrans>(
this IEstimator <ITransformer> start, IEstimator <TTrans> estimator,
TransformerScope scope = TransformerScope.Everything)
where TTrans : class, ITransformer
{
Contracts.CheckValue(start, nameof(start));
Contracts.CheckValue(estimator, nameof(estimator));
return(new EstimatorChain <ITransformer>().Append(start).Append(estimator, scope));
}
public TransformerChain <ITransformer> GetModelFor(TransformerScope scopeFilter)
{
var xfs = new List <ITransformer>();
var scopes = new List <TransformerScope>();
for (int i = 0; i < _transformers.Length; i++)
{
if ((_scopes[i] & scopeFilter) != TransformerScope.None)
{
xfs.Add(_transformers[i]);
scopes.Add(_scopes[i]);
}
}
return(new TransformerChain <ITransformer>(xfs.ToArray(), scopes.ToArray()));
}
internal SweepableEstimator(TTran instance, TransformerScope scope = TransformerScope.Everything, string estimatorName = null, string[] inputs = null, string[] outputs = null)
: base(estimatorName, inputs, outputs, null, scope)
{
this._instance = instance;
if (estimatorName == null)
{
this.EstimatorName = instance.ToString().Split('.').Last();
}
else
{
this.EstimatorName = estimatorName;
}
this.InputColumns = inputs;
this.OutputColumns = outputs;
}
public TransformerChain <TNewLast> Append <TNewLast>(TNewLast transformer, TransformerScope scope = TransformerScope.Everything)
where TNewLast : class, ITransformer
{
Contracts.CheckValue(transformer, nameof(transformer));
return(new TransformerChain <TNewLast>(_transformers.AppendElement(transformer), _scopes.AppendElement(scope)));
}
public EstimatorChain <TNewTrans> Append <TNewTrans>(IEstimator <TNewTrans> estimator, TransformerScope scope = TransformerScope.Everything)
where TNewTrans : class, ITransformer
{
Contracts.CheckValue(estimator, nameof(estimator));
return(new EstimatorChain <TNewTrans>(_host, _estimators.AppendElement(estimator), _scopes.AppendElement(scope), _needCacheAfter.AppendElement(false)));
}
public EstimatorChain <TNewTrans> Append <TNewTrans>(IEstimator <TNewTrans> estimator, TransformerScope scope = TransformerScope.Everything)
where TNewTrans : class, ITransformer
{
Contracts.CheckValue(estimator, nameof(estimator));
return(new EstimatorChain <TNewTrans>(_estimators.Append(estimator).ToArray(), _scopes.Append(scope).ToArray()));
}
public static SweepableEstimator <TInstance> CreateUnSweepableNode <TInstance>(TInstance instance, TransformerScope scope = TransformerScope.Everything, string estimatorName = null)
where TInstance : IEstimator <ITransformer>
{
return(new SweepableEstimator <TInstance>(instance, scope, estimatorName));
}
public static SweepableEstimator <TNewTrain, TOption> CreateSweepableNode <TNewTrain, TOption>(Func <TOption, TNewTrain> estimatorFactory, SweepableOption <TOption> optionBuilder, TransformerScope scope = TransformerScope.Everything, string estimatorName = null)
where TNewTrain : IEstimator <ITransformer>
where TOption : class
{
return(new SweepableEstimator <TNewTrain, TOption>(estimatorFactory, optionBuilder, scope, estimatorName));
}
public SweepableEstimatorBase(string estimatorName, string[] inputColumns, string[] outputColumns, IEnumerable <IValueGenerator> sweepableValueGenerators, TransformerScope scope = TransformerScope.Everything)
{
this.EstimatorName = estimatorName;
this.InputColumns = inputColumns;
this.OutputColumns = outputColumns;
this.SweepableValueGenerators = sweepableValueGenerators;
this.Scope = scope;
}
public static SweepableEstimator <TInstance> CreateSweepableEstimator <TInstance>(TInstance instance, TransformerScope scope = TransformerScope.Everything, string estimatorName = null, string[] inputs = null, string[] outputs = null)
where TInstance : IEstimator <ITransformer>
{
return(new SweepableEstimator <TInstance>(instance, scope, estimatorName, inputs, outputs));
}
