Package

weka.filters.unsupervised.attribute

Synopsis

Changes the date format used by a date attribute. This is most useful for converting to a format with less precision, for example, from an absolute date to day of year, etc. This changes the format string, and changes the date values to those that would be parsed by the new format.

Options

The table below describes the options available for ChangeDateFormat.

Option	Description
attributeIndex	Sets which attribute to process. This attribute must be of type date ("first" and "last" are valid values)
dateFormat	The date format to change to. This should be a format understood by Java's SimpleDateFormat class.

Capabilities

The table below describes the capabilites of ChangeDateFormat.

Capability	Supported
Class	Numeric class, Empty nominal class, No class, Relational class, Unary class, Missing class values, Date class, String class, Binary class, Nominal class
Attributes	Relational attributes, Missing values, Unary attributes, Nominal attributes, Numeric attributes, Empty nominal attributes, Date attributes, String attributes, Binary attributes
Min # of instances	0

Browser not supported