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
-
Return unique values without sorting
1011 Solvers
-
Matrix indexing with two vectors of indices
780 Solvers
-
Remove the two elements next to NaN value
709 Solvers
-
Create a vector whose elements depend on the previous element
795 Solvers
-
Try 1.5.4: Celsius to Fahrenheit
871 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.