Hi,
According to my copy of BaseX 10.7,
string:levenshtein('oil field', 'oilfield')
and
string:levenshtein('oil field', 'coalfield')
both return the same value, 0.7777777777777778.
My understanding is that the Levenshtein-Damerau distance between 'oil
field' and 'oilfield' is 1 and between 'oil field' and 'coalfield' is 3, so
following the formula from
https://docs.basex.org/wiki/String_Module#string:levenshtein
1.0 – distance / max(length of strings)
should give 0.888... and 0.666... respectively.
Am I off-base here or is there something awry with string:levenshtein?
Cheers,
Jack
