2021-1: Are You a Bacteria?
A DNA string is composed of the letters 'A','C','G' and 'T'. The GC-content of a DNA string is given by the percentage of the symbols in the string that are either 'C' or 'G'. Very small discrepancies in GC-content can be used to distinguish species; for instance, most bacteria have a GC-content significantly higher than 50%.
Write a function that:
- has a right argument that is a non-empty character vector representing a DNA string.
- returns the percentage of GC-content in the string.
💡 Hint: The membership function X∊Y could be helpful for this problem.
Examples:
(your_function) 'GCGCGCGCCCGGGGCCG'
100
(your_function) 'ACGTACGTACGTACGT'
50
(your_function) 10 12 16 10/'ACGT'
58.33333333
your_function ←
Solutions
