# Question about Wolfram Language & System's Sequence Alignment Function

Posted 1 year ago
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 Hi,I was hoping to use Wolfram's Sequence Alignment & Comparison function for checking similarity and sequence motifs for text sequence data. Does anyone know what algorithm this function uses? I can't find much on that.https://reference.wolfram.com/language/guide/SequenceAlignmentAndComparison.htmlThanks! Alec
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Posted 1 year ago
 Checking the reference page for SequenceAlignment shows the two notes below. SequenceAlignment by default finds a global Needleman–Wunsch alignment of the complete strings or lists s1 and s2.With the option setting Method->"Local", it finds a local Smith–Waterman alignment. ---These are the second and third bullet items from the Details and Options section.
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Posted 1 year ago
 Oh, I should have seen that. Thank you.
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