Nucleotide Count in Ruby
Given a DNA string, compute how many times each nucleotide occurs in the string.
exercism fetch ruby nucleotide-count
Given a single stranded DNA string, compute how many times each nucleotide occurs in the string.
The genetic language of every living thing on the planet is DNA. DNA is a large molecule that is built from an extremely long sequence of individual elements called nucleotides. 4 types exist in DNA and these differ only slightly and can be represented as the following symbols: 'A' for adenine, 'C' for cytosine, 'G' for guanine, and 'T' thymine.
Here is an analogy:
- twigs are to birds nests as
- nucleotides are to DNA as
- legos are to lego houses as
- words are to sentences as...
For installation and learning resources, refer to the exercism help page.
For running the tests provided, you will need the Minitest gem. Open a terminal window and run the following command to install minitest:
gem install minitest
If you would like color output, you can
require 'minitest/pride' in
the test file, or note the alternative instruction, below, for running
the test file.
Run the tests from the exercise directory using the following command:
To include color from the command line:
ruby -r minitest/pride nucleotide_count_test.rb
The Calculating DNA Nucleotides_problem at Rosalind http://rosalind.info/problems/dna/
Submitting Incomplete Solutions
It's possible to submit an incomplete solution so you can see how others have completed the exercise.