Package smile.data

Class NumericAttribute

java.lang.Object

smile.data.Attribute

smile.data.NumericAttribute

All Implemented Interfaces:

java.io.Serializable

public class NumericAttribute
extends Attribute

Numeric attribute. Numeric attributes can be real or integer numbers.

Author:

Haifeng Li

See Also:

Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from class smile.data.Attribute

Attribute.Type

Constructor Summary

Constructors

Constructor	Description
NumericAttribute(java.lang.String name)	Constructor.
NumericAttribute(java.lang.String name, double weight)	Constructor.
NumericAttribute(java.lang.String name, java.lang.String description)	Constructor.
NumericAttribute(java.lang.String name, java.lang.String description, double weight)	Constructor.

Method Summary

Modifier and Type	Method	Description
java.lang.String	toString(double x)	Returns the string representation of a double value of this attribute.
double	valueOf(java.lang.String s)	Returns the double value of a string of this attribute.

Methods inherited from class smile.data.Attribute

equals, getDescription, getName, getType, getWeight, hashCode, setDescription, setName, setWeight, toString

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

NumericAttribute

public NumericAttribute(java.lang.String name)

Constructor.

NumericAttribute

public NumericAttribute(java.lang.String name,
                        double weight)

Constructor.

NumericAttribute

public NumericAttribute(java.lang.String name,
                        java.lang.String description)

Constructor.

NumericAttribute

public NumericAttribute(java.lang.String name,
                        java.lang.String description,
                        double weight)

Constructor.

Method Detail

toString

public java.lang.String toString(double x)

Description copied from class: Attribute

Returns the string representation of a double value of this attribute.

Specified by:

toString in class Attribute

Parameters:

x - a double value of this attribute. NaN means missing value.

Returns:

the string representation of x. For nominal, date and string attributes, null will be returned for missing values. For numeric attributes, "NaN" will be returned for missing values.

valueOf

public double valueOf(java.lang.String s)
               throws java.text.ParseException

Description copied from class: Attribute

Returns the double value of a string of this attribute.

Specified by:

valueOf in class Attribute

Parameters:

s - a string value of this attribute.

Throws:

java.text.ParseException