org.datavec.api.transform

Interface Transform

All Superinterfaces:

Serializable

All Known Implementing Classes:

BaseColumnsMathOpTransform, BaseColumnTransform, BaseDoubleTransform, BaseIntegerTransform, BaseStringTransform, BaseTransform, CategoricalToIntegerTransform, CategoricalToOneHotTransform, ConditionalCopyValueTransform, ConditionalReplaceValueTransform, DeriveColumnsFromTimeTransform, DoubleColumnsMathOpTransform, DoubleMathOpTransform, DuplicateColumnsTransform, IntegerColumnsMathOpTransform, IntegerMathOpTransform, IntegerToCategoricalTransform, Log2Normalizer, LongColumnsMathOpTransform, LongMathOpTransform, MapAllStringsExceptListTransform, MinMaxNormalizer, ReduceSequenceByWindowTransform, RemoveAllColumnsExceptForTransform, RemoveColumnsTransform, RemoveWhiteSpaceTransform, RenameColumnsTransform, ReorderColumnsTransform, ReplaceEmptyIntegerWithValueTransform, ReplaceEmptyStringTransform, ReplaceInvalidWithIntegerTransform, StandardizeNormalizer, StringListToCategoricalSetTransform, StringMapTransform, StringToCategoricalTransform, StringToTimeTransform, SubtractMeanNormalizer, TimeMathOpTransform

public interface Transform
extends Serializable

A Transform converts an example to another example, or a sequence to another sequence

Method Summary

Modifier and Type	Method and Description
Schema	getInputSchema()
List<Writable>	map(List<Writable> writables)
List<List<Writable>>	mapSequence(List<List<Writable>> sequence) Transform a sequence
void	setInputSchema(Schema inputSchema) Set the input schema.
Schema	transform(Schema inputSchema) Get the output schema for this transformation, given an input schema

Method Detail

transform

Schema transform(Schema inputSchema)

Get the output schema for this transformation, given an input schema

setInputSchema

void setInputSchema(Schema inputSchema)

Set the input schema. Should be done automatically in TransformProcess, and is often necessary to do map(List)

getInputSchema

Schema getInputSchema()

map

List<Writable> map(List<Writable> writables)

mapSequence

List<List<Writable>> mapSequence(List<List<Writable>> sequence)

Transform a sequence