LongestCommonSequence

LongestCommonSequence[s1,s2]

finds the longest sequence of contiguous or disjoint elements common to the strings, lists or biomolecular sequences s1 and s2.

Details and Options

  • LongestCommonSequence returns the longest common sequence with disjoint pieces concatenated.
  • If there are several common subsequences of the same length, LongestCommonSequence returns the one that begins earliest in s1.
  • For strings, setting the option IgnoreCase->True makes LongestCommonSequence treat lowercase and uppercase letters as equivalent, and return the form of common sequence that occurs in s1.

Examples

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Basic Examples  (3)

Find the longest noncontiguous sequence common to two strings:

Find the longest noncontiguous sequence common to two lists:

Find the longest noncontiguous sequence common to two biomolecular sequences:

Neat Examples  (1)

Find the lengths of longest common sequences in random binary sequences of length 100:

Wolfram Research (2008), LongestCommonSequence, Wolfram Language function, https://reference.wolfram.com/language/ref/LongestCommonSequence.html (updated 2020).

Text

Wolfram Research (2008), LongestCommonSequence, Wolfram Language function, https://reference.wolfram.com/language/ref/LongestCommonSequence.html (updated 2020).

CMS

Wolfram Language. 2008. "LongestCommonSequence." Wolfram Language & System Documentation Center. Wolfram Research. Last Modified 2020. https://reference.wolfram.com/language/ref/LongestCommonSequence.html.

APA

Wolfram Language. (2008). LongestCommonSequence. Wolfram Language & System Documentation Center. Retrieved from https://reference.wolfram.com/language/ref/LongestCommonSequence.html

BibTeX

@misc{reference.wolfram_2024_longestcommonsequence, author="Wolfram Research", title="{LongestCommonSequence}", year="2020", howpublished="\url{https://reference.wolfram.com/language/ref/LongestCommonSequence.html}", note=[Accessed: 21-November-2024 ]}

BibLaTeX

@online{reference.wolfram_2024_longestcommonsequence, organization={Wolfram Research}, title={LongestCommonSequence}, year={2020}, url={https://reference.wolfram.com/language/ref/LongestCommonSequence.html}, note=[Accessed: 21-November-2024 ]}