Number of Words and Stems that Differ

"The number of words and stems that differ — Stemmers often leave words unchanged. For example, a stemmer might not alter "engineer" because it is already a root word. Stronger stemmers will change words more often than weaker stemmers." Frakes & Fox Ref: W1.

If the Levenshtein Distance setting is 0 to 0, the words listed will be where the words in List A and List B are identical, conversely with a setting of 1 to 32 it will list all words that differ in List A and List B. (Intended for words lists containing words up to 32 letters in length. The default maximum word length in dtSearch Desktop is 32).

Caution

The setting will affect the metric displayed for List A and B Mean Word Length, and Mean Characters Removed. It should normally be set for 0 to 32 for these measurements. If the length of any input word is greater than 32 it will be listed provided that the Levenschtein distance between the word in List A and the word at the same position in List B is not greater than 32.