Initial commit — jibo-cli v3.0.7 with bundled node_modules
This commit is contained in:
148
node_modules/compute-hamming/README.md
generated
vendored
Normal file
148
node_modules/compute-hamming/README.md
generated
vendored
Normal file
@@ -0,0 +1,148 @@
|
||||
Hamming Distance
|
||||
===
|
||||
[![NPM version][npm-image]][npm-url] [![Build Status][travis-image]][travis-url] [![Coverage Status][coveralls-image]][coveralls-url] [![Dependencies][dependencies-image]][dependencies-url]
|
||||
|
||||
> Computes the [Hamming distance](http://en.wikipedia.org/wiki/Hamming_distance) between two sequences.
|
||||
|
||||
In [information theory](http://en.wikipedia.org/wiki/Information_theory), the Hamming distance is number of differences between two sequences of the same length. These sequences may be represented as character strings, binary strings, or arrays.
|
||||
|
||||
|
||||
## Installation
|
||||
|
||||
``` bash
|
||||
$ npm install compute-hamming
|
||||
```
|
||||
|
||||
For use in the browser, use [browserify](https://github.com/substack/node-browserify).
|
||||
|
||||
|
||||
## Usage
|
||||
|
||||
|
||||
``` javascript
|
||||
var hamming = require( 'compute-hamming' );
|
||||
```
|
||||
|
||||
|
||||
#### hamming( a, b[, accessor] )
|
||||
|
||||
Computes the [Hamming distance](http://en.wikipedia.org/wiki/Hamming_distance) between two sequences. The sequences must be either both equal length `strings` or equal length `arrays`.
|
||||
|
||||
``` javascript
|
||||
var a = 'this is a string.',
|
||||
b = 'thiz iz a string.';
|
||||
|
||||
var dist = hamming( a, b );
|
||||
// returns 2
|
||||
|
||||
var c = [ 5, 23, 2, 5, 9 ],
|
||||
d = [ 3, 21, 2, 5, 14 ];
|
||||
|
||||
dist = hamming( c, d );
|
||||
// returns 3
|
||||
```
|
||||
|
||||
To compute the [Hamming distance](http://en.wikipedia.org/wiki/Hamming_distance) between nested `array` values, provide an accessor `function` for accessing `array` values.
|
||||
|
||||
``` javascript
|
||||
var a = [
|
||||
{'x':2},
|
||||
{'x':4},
|
||||
{'x':5},
|
||||
{'x':3},
|
||||
{'x':8},
|
||||
{'x':2}
|
||||
];
|
||||
|
||||
var b = [
|
||||
[1,3],
|
||||
[2,1],
|
||||
[3,5],
|
||||
[4,3],
|
||||
[5,7],
|
||||
[6,2]
|
||||
];
|
||||
|
||||
function getValue( d, i, j ) {
|
||||
if ( j === 0 ) {
|
||||
return d.x;
|
||||
}
|
||||
return d[ 1 ];
|
||||
}
|
||||
|
||||
var dist = hamming( a, b, getValue );
|
||||
// returns 3
|
||||
```
|
||||
|
||||
The accessor `function` is provided three arguments:
|
||||
|
||||
- __d__: current datum.
|
||||
- __i__: current datum index.
|
||||
- __j__: sequence index; e.g., sequence `a` has index `0` and sequence `b` has index `1`.
|
||||
|
||||
|
||||
## Examples
|
||||
|
||||
To run the example code from the top-level application directory,
|
||||
|
||||
``` bash
|
||||
$ node ./examples/index.js
|
||||
```
|
||||
|
||||
|
||||
## Tests
|
||||
|
||||
### Unit
|
||||
|
||||
Unit tests use the [Mocha](http://mochajs.org) test framework with [Chai](http://chaijs.com) assertions. To run the tests, execute the following command in the top-level application directory:
|
||||
|
||||
``` bash
|
||||
$ make test
|
||||
```
|
||||
|
||||
All new feature development should have corresponding unit tests to validate correct functionality.
|
||||
|
||||
|
||||
### Test Coverage
|
||||
|
||||
This repository uses [Istanbul](https://github.com/gotwarlost/istanbul) as its code coverage tool. To generate a test coverage report, execute the following command in the top-level application directory:
|
||||
|
||||
``` bash
|
||||
$ make test-cov
|
||||
```
|
||||
|
||||
Istanbul creates a `./reports/coverage` directory. To access an HTML version of the report,
|
||||
|
||||
``` bash
|
||||
$ make view-cov
|
||||
```
|
||||
|
||||
|
||||
---
|
||||
## License
|
||||
|
||||
[MIT license](http://opensource.org/licenses/MIT).
|
||||
|
||||
|
||||
## Copyright
|
||||
|
||||
Copyright © 2014-2015. Athan Reines.
|
||||
|
||||
|
||||
[npm-image]: http://img.shields.io/npm/v/compute-hamming.svg
|
||||
[npm-url]: https://npmjs.org/package/compute-hamming
|
||||
|
||||
[travis-image]: http://img.shields.io/travis/compute-io/hamming/master.svg
|
||||
[travis-url]: https://travis-ci.org/compute-io/hamming
|
||||
|
||||
[coveralls-image]: https://img.shields.io/coveralls/compute-io/hamming/master.svg
|
||||
[coveralls-url]: https://coveralls.io/r/compute-io/hamming?branch=master
|
||||
|
||||
[dependencies-image]: http://img.shields.io/david/compute-io/hamming.svg
|
||||
[dependencies-url]: https://david-dm.org/compute-io/hamming
|
||||
|
||||
[dev-dependencies-image]: http://img.shields.io/david/dev/compute-io/hamming.svg
|
||||
[dev-dependencies-url]: https://david-dm.org/dev/compute-io/hamming
|
||||
|
||||
[github-issues-image]: http://img.shields.io/github/issues/compute-io/hamming.svg
|
||||
[github-issues-url]: https://github.com/compute-io/hamming/issues
|
||||
Reference in New Issue
Block a user