Filters the rows based on the selected value of a nominal attribute. A nominal column can be selected and one or more nominal value of this attribute. Rows which have this nominal value in the selected column are included in the output data, all other rows are excluded.
In order for a nominal column to appear in the node dialog, its domain (the set of values that appear in the column) must be calculated. For columns with few values (less than 60) this is done automatically. To ensure the domain is properly set, use the Domain Calculator node or the Edit Nominal Domain node.
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