Remove terms from the document-term matrix of a corpus to exclude them from further analyses.
This dialog allows to only retain specified terms when you want to concentrate your analysis on an identified vocabulary, or to exclude a few terms that are known to interfere with the analysis.
Terms that are not retained or that are excluded are removed from the document-term matrix, and are thus no longer taken into account by any operations run later, like listing terms of the corpus or computing a correspondence analysis. They are not removed from the corpus's documents.