Problem 43169. Frequency Analysis of Text

Frequency analysis is a common task in cryptoanalysis. It is essentially counting the occurrences of alphabets (regardless of case).

So for example,

s = 'This is a very good day'

frequency = [2 0 0 2 1 0 1 1 2 0 0 0 0 0 2 0 0 1 2 1 0 1 0 0 2 0]

Frequency is organized from a-z.

Please write a program that performs this calculation.

Solve

Solution Stats

56.41% Correct | 43.59% Incorrect
Last Solution submitted on Oct 27, 2025

Problem Comments

Solution Comments

Show comments

Problem Recent Solvers38

Suggested Problems

More from this Author1

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!