2019-3: Grade Distribution
The school's administrative department wants to publish some simple statistics. Given a non-empty character vector of single-letter grades, produce a 3-column, 5-row, alphabetically-sorted matrix of each grade, the number of occurrences of that grade, and the percentage (rounded to 1 decimal position) of the total number of occurrences of that grade. The table should have a row for each grade even if there are no occurrences of a grade.
Note: due to rounding the last column might not total 100%.
💡 Hint: The key operator ⌸ could be useful for this problem.
Examples:
(your_function) 9 3 8 4 7/'DABFC'
A 3 9.7
B 8 25.8
C 7 22.6
D 9 29
F 4 12.9
(your_function) 20⍴'ABC'
A 7 35
B 7 35
C 6 30
D 0 0
F 0 0
(your_function) ,'B'
A 0 0
B 1 100
C 0 0
D 0 0
F 0 0
your_function ←
Solutions
