Package org.tribuo.data.columnar

Provides classes for processing columnar data and generating Examples.

See: Description

Interface Summary

Interface	Description
FeatureProcessor	Takes a list of columnar features and adds new features or removes existing features.
FieldExtractor<T>	Extracts a value from a field to be placed in an Example's metadata field.
FieldProcessor	An interface for things that process the columns in a data set.
ResponseProcessor<T extends Output<T>>	An interface that will take the response field and produce an Output.

Class Summary

Class	Description
ColumnarDataSource<T extends Output<T>>	A ConfigurableDataSource base class which takes columnar data (e.g., csv or DB table rows) and generates Examples.
ColumnarFeature	A Feature with extra bookkeeping for use inside the columnar package.
ColumnarIterator	An abstract class for iterators that read data in to a columnar format, usually from a file of some kind.
ColumnarIterator.Row	A representation of a row of untyped data from a columnar data source.
RowProcessor<T extends Output<T>>	A processor which takes a Map of String to String and returns an Example.

Enum Summary

Enum	Description
FieldProcessor.GeneratedFeatureType	The types of generated features.

Package org.tribuo.data.columnar Description

Provides classes for processing columnar data and generating Examples.

The main class is RowProcessor which can take a Map from String to String and generate Features using a FieldProcessor and Outputs using a ResponseProcessor.