smile.data

Class DateAttribute

java.lang.Object

smile.data.Attribute

smile.data.DateAttribute

public class DateAttribute
extends Attribute

Data attribute. The default format string accepts the ISO-8601 combined date and time format: "yyyy-MM-dd'T'HH:mm:ss".

Author:

Haifeng Li

Nested Class Summary

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

Attribute.Type

Field Summary

Fields inherited from class smile.data.Attribute

description, name, type, weight

Constructor Summary

Constructors

Constructor and Description
DateAttribute(String name) Constructor.
DateAttribute(String name, double weight) Constructor.
DateAttribute(String name, String description, double weight) Constructor.
DateAttribute(String name, String description, double weight, String format) Constructor.
DateAttribute(String name, String description, String format) Constructor.

Method Summary

Methods

Modifier and Type	Method and Description
DateFormat	getFormat() Returns the date string formatter.
void	setFormat(DateFormat format) Sets the date string formatter.
void	setFormat(String format) Sets the date format.
String	toString(Date date) Generate the date string.
String	toString(double x) Returns the string representation of a double value of this attribute.
double	valueOf(Date date) Returns the double value representation of a data object.
double	valueOf(String s) Returns the double value of a string of this attribute.

Methods inherited from class smile.data.Attribute

equals, hashCode, toString

Methods inherited from class java.lang.Object

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

Constructor Detail

DateAttribute

public DateAttribute(String name)

Constructor.

DateAttribute

public DateAttribute(String name,
             double weight)

Constructor.

DateAttribute

public DateAttribute(String name,
             String description,
             double weight)

Constructor.

DateAttribute

public DateAttribute(String name,
             String description,
             String format)

Constructor.

Parameters:

name - the name of attribute.

format - the date format.

DateAttribute

public DateAttribute(String name,
             String description,
             double weight,
             String format)

Constructor.

Parameters:

name - the name of attribute.

format - the date format.

Method Detail

getFormat

public DateFormat getFormat()

Returns the date string formatter.

Returns:

the date string formatter.

setFormat

public void setFormat(String format)

Sets the date format.

Parameters:

format - the date format string.

setFormat

public void setFormat(DateFormat format)

Sets the date string formatter.

Parameters:

format - the date string formatter.

toString

public String toString(Date date)

Generate the date string.

valueOf

public double valueOf(Date date)

Returns the double value representation of a data object.

toString

public 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(String s)
               throws 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:

ParseException