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LevenshteinDist - script and chart function

LevenshteinDist() returns the Levenshtein distance between two strings. It is defined as the minimum number of single-character edits (insertions, deletions, or substitutions) required to change one string into the other. The function is useful for fuzzy string comparisons.

Syntax:  

LevenshteinDist(text1, text2)

Return data type: integer