https://github.com/matsumotory/mruby-correlation

Extended Array class for correlation coefficient
https://github.com/matsumotory/mruby-correlation

Last synced: about 2 months ago
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Extended Array class for correlation coefficient

• Host: GitHub
• URL: https://github.com/matsumotory/mruby-correlation
• Owner: matsumotory
• License: other
• Created: 2016-06-01T06:38:02.000Z (over 8 years ago)
• Default Branch: master
• Last Pushed: 2016-06-03T08:50:38.000Z (over 8 years ago)
• Last Synced: 2024-10-18T18:26:01.611Z (3 months ago)
• Language: C
• Homepage:
• Size: 13.7 KB
• Stars: 0
• Watchers: 5
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        
# mruby-correlation   [![Build Status](https://travis-ci.org/matsumoto-r/mruby-correlation.svg?branch=master)](https://travis-ci.org/matsumoto-r/mruby-correlation)

Extended Array class for correlation coefficient

## install by mrbgems

- add conf.gem line to `build_config.rb`

```ruby

MRuby::Build.new do |conf|

    # ... (snip) ...

    conf.gem :mgem => 'mruby-correlation'

end

```

## example

```ruby

assert("Array#correlation_coefficient_with") do

  d = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10]

  assert_equal(1.0, d.correlation_coefficient_with([1, 2, 3, 4, 5, 6, 7, 8, 9, 10]))

  assert_equal(1.0, d.correlation_coefficient_with(d))

  assert_equal(1.0, d.correlation_coefficient_with(d.map{|a|a/2}))

  assert_equal(-1.0, d.correlation_coefficient_with(d.reverse))

  assert_equal(0.9923373049285564, d.correlation_coefficient_with([2, 3, 3, 4, 6, 7, 8, 9, 10, 11]))

  assert_equal(-0.9803906931996748, d.correlation_coefficient_with([15, 13, 12, 12, 10, 10, 8, 7, 4, 3]))

end

```

## License

under the MIT License:

- see LICENSE file