public interface IEstimator<out TTransformer> where TTransformer : ITransformer
type IEstimator<'ransformer (requires 'ransformer :> ITransformer)> = interface
Public Interface IEstimator(Of Out TTransformer)
Train and return a transformer.
Schema propagation for estimators. Returns the output schema shape of the estimator, if the input schema shape is like the one provided.
Given an estimator, return a wrapping object that will call a delegate once Fit(IDataView) is called. It is often important for an estimator to return information about what was fit, which is why the Fit(IDataView) method returns a specifically typed object, rather than just a general ITransformer. However, at the same time, IEstimator<TTransformer> are often formed into pipelines with many objects, so we may need to build a chain of estimators via EstimatorChain<TLastTransformer> where the estimator for which we want to get the transformer is buried somewhere in this chain. For that scenario, we can through this method attach a delegate that will be called once fit is called.