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An instance filter that copies a range of attributes in the dataset. This is used in conjunction with other filters that overwrite attribute values during the course of their operation – this filter allows the original attributes to be kept as well as the new attributes.


The table below describes the options available for Copy.

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".
invertSelection Sets copy selected vs unselected action. If set to false, only the specified attributes will be copied; If set to true, non-specified attributes will be copied.


The table below describes the capabilites of Copy.

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

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