smile.feature

Interface Feature<T>

Type Parameters:

T - the type of input object.

All Known Implementing Classes:

DateFeature, Nominal2Binary, NumericAttributeFeature

public interface Feature<T>

Feature generator.

Method Summary

Modifier and Type	Method and Description
smile.data.Attribute[]	attributes() Returns the variable attributes of generated features.
double	f(T object, int id) Generates a feature for given object.

Method Detail

attributes

smile.data.Attribute[] attributes()

Returns the variable attributes of generated features. Note that these are NOT the original variable attributes of objects.

Returns:

the variable attributes of generated features

f

double f(T object,
         int id)

Generates a feature for given object.

Parameters:

object - an object of interest.

id - the index of feature to be generated.

Returns:

a feature value.