Given a string s and a number n, find the most frequently occurring n-gram in the string, where the n-grams can begin at any point in the string. This comes up in DNA analysis, where the 3-base reading frame for a codon can begin at any point in the sequence.
So for
s = 'AACTGAACG'
and
n = 3
we get the following n-grams (trigrams):
AAC, ACT, CTG, TGA, GAA, AAC, ACG
Since AAC appears twice, then the answer, hifreq, is AAC. There will always be exactly one highest frequency n-gram.
Solution Stats
Problem Comments
1 Comment
Solution Comments
Show comments
Loading...
Problem Recent Solvers1376
Suggested Problems
-
Make the vector [1 2 3 4 5 6 7 8 9 10]
53161 Solvers
-
Back to basics 22 - Rotate a matrix
937 Solvers
-
907 Solvers
-
Create a square matrix of multiples
500 Solvers
-
Make a random, non-repeating vector.
11471 Solvers
More from this Author96
Problem Tags
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!
It should be noted that spaces should be ignored or else test suites 3 and 5 fail.