Package

weka.filters.unsupervised.attribute

Synopsis

Replaces all missing values for nominal, string, numeric and date attributes in the dataset with user-supplied constant values.

The table below describes the options available for ReplaceMissingWithUserConstant.

Option	Description
attributes	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". Can alternatively specify a comma separated list of attribute names. Note that you can't mix indices and attribute names in the same list
dateFormat	The formatting string to use for parsing the date replacement value
dateReplacementValue	The constant to replace missing values in date attributes with
ignoreClass	The class index will be unset temporarily before the filter is applied.
nominalStringReplacementValue	The constant to replace missing values in nominal/string attributes with
numericReplacementValue	The constant to replace missing values in numeric attributes with

The table below describes the capabilities of ReplaceMissingWithUserConstant.

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