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Package

weka.filters.unsupervised.attribute

Synopsis

Converts all nominal attributes into binary numeric attributes. An attribute with k values is transformed into k binary attributes if the class is nominal (using the one-attribute-per-value approach). Binary attributes are left binary, if option '-A' is not given.If the class is numeric, you might want to use the supervised version of this filter.

Options

The table below describes the options available for NominalToBinary.

Option

Description

attributeIndices

Specify range of attributes to act on. This is a comma separated list of attribute indices, with "first" and "last" valid values. Specify an inclusive range with "-". E.g: "first-3,5,6-10,last".

binaryAttributesNominal

Whether resulting binary attributes will be nominal.

invertSelection

Set attribute selection mode. If false, only selected (numeric) attributes in the range will be discretized; if true, only non-selected attributes will be discretized.

transformAllValues

Whether all nominal values are turned into new attributes, not only if there are more than 2.

Capabilities

The table below describes the capabilites of NominalToBinary.

Capability

Supported

Class

Empty nominal class, Missing class values, Binary class, Date class, Nominal class, Relational class, Numeric class, String class, Unary class, No class

Attributes

String attributes, Date attributes, Relational attributes, Numeric attributes, Binary attributes, Empty nominal attributes, Missing values, Unary attributes, Nominal attributes

Min # of instances

0

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