smile.data

Class AttributeDataset.Row

java.lang.Object

smile.data.Datum<double[]>

smile.data.AttributeDataset.Row

Enclosing class:

AttributeDataset

public class AttributeDataset.Row
extends Datum<double[]>

Field Summary

Fields inherited from class smile.data.Datum

description, name, timestamp, weight, x, y

Constructor Summary

Constructors

Constructor and Description
Row(double[] x) Constructor.
Row(double[] x, double y) Constructor.
Row(double[] x, double y, double weight) Constructor.

Method Summary

Modifier and Type	Method and Description
java.util.Date	date(int i) Returns a date element.
java.lang.String	label() Returns the class label in string format.
java.lang.String	string(int i) Returns an element value in string format.
java.lang.String	toString()

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

Row

public Row(double[] x)

Constructor.

Parameters:

x - the datum.

Row

public Row(double[] x,
           double y)

Constructor.

Parameters:

x - the datum.

y - the class label or real-valued response.

Row

public Row(double[] x,
           double y,
           double weight)

Constructor.

Parameters:

x - the datum.

y - the class label or real-valued response.

weight - the weight of datum. The particular meaning of weight depends on applications and machine learning algorithms. Although there are on explicit requirements on the weights, in general, they should be positive.

Method Detail

label

public java.lang.String label()

Returns the class label in string format.

string

public java.lang.String string(int i)

Returns an element value in string format.

Parameters:

i - the element index.

date

public java.util.Date date(int i)

Returns a date element.

Parameters:

i - the element index.

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object