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Contents

# Nucleotide Count

Given a DNA string, compute how many times each nucleotide occurs in the string.

DNA is represented by an alphabet of the following symbols: 'A', 'C',
'G', and 'T'.

Each symbol represents a nucleotide, which is a fancy name for the
particular molecules that happen to make up a large part of DNA.

Shortest intro to biochemistry EVAR:

- twigs are to birds nests as
- nucleotides are to DNA and RNA as
- amino acids are to proteins as
- sugar is to starch as
- oh crap lipids

I'm not going to talk about lipids because they're crazy complex.

So back to nucleotides.

DNA contains four types of them: adenine (`A`), cytosine (`C`), guanine
(`G`), and thymine (`T`).

RNA contains a slightly different set of nucleotides, but we don't care
about that for now.

## Installation
See [this guide](https://github.com/exercism/xr/blob/master/docs/INSTALLATION.md) for instructions on how to setup your local R environment.

## How to implement your solution
In each problem folder, there is a file named `<exercise_name>.R` containing a function that returns a `NULL` value. Place your implementation inside the body of the function.

## How to run tests
Inside of RStudio, simply execute the `test_<exercise_name>.R` script. This can be conveniently done with [testthat's `auto_test` function](https://www.rdocumentation.org/packages/testthat/topics/auto_test). Because exercism code and tests are in the same folder, use this same path for both  `code_path` and `test_path` parameters. On the command-line, you can also run `Rscript test_<exercise_name>.R`.

## Source

The Calculating DNA Nucleotides_problem at Rosalind [http://rosalind.info/problems/dna/](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.

Version data entries

98 entries across 98 versions & 1 rubygems

Version Path
trackler-2.2.1.104 tracks/r/exercises/nucleotide-count/README.md
trackler-2.2.1.103 tracks/r/exercises/nucleotide-count/README.md
trackler-2.2.1.102 tracks/r/exercises/nucleotide-count/README.md
trackler-2.2.1.101 tracks/r/exercises/nucleotide-count/README.md
trackler-2.2.1.100 tracks/r/exercises/nucleotide-count/README.md
trackler-2.2.1.99 tracks/r/exercises/nucleotide-count/README.md
trackler-2.2.1.98 tracks/r/exercises/nucleotide-count/README.md
trackler-2.2.1.97 tracks/r/exercises/nucleotide-count/README.md
trackler-2.2.1.96 tracks/r/exercises/nucleotide-count/README.md
trackler-2.2.1.95 tracks/r/exercises/nucleotide-count/README.md
trackler-2.2.1.94 tracks/r/exercises/nucleotide-count/README.md
trackler-2.2.1.93 tracks/r/exercises/nucleotide-count/README.md
trackler-2.2.1.92 tracks/r/exercises/nucleotide-count/README.md
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trackler-2.2.1.89 tracks/r/exercises/nucleotide-count/README.md
trackler-2.2.1.88 tracks/r/exercises/nucleotide-count/README.md
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trackler-2.2.1.86 tracks/r/exercises/nucleotide-count/README.md
trackler-2.2.1.85 tracks/r/exercises/nucleotide-count/README.md