https://github.com/swanandp/loess.rb
A Simple LOESS / LOWESS calculator that can be used from Ruby
https://github.com/swanandp/loess.rb
Last synced: 7 months ago
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A Simple LOESS / LOWESS calculator that can be used from Ruby
- Host: GitHub
- URL: https://github.com/swanandp/loess.rb
- Owner: swanandp
- License: mit
- Created: 2014-08-05T16:08:07.000Z (about 11 years ago)
- Default Branch: master
- Last Pushed: 2014-08-08T07:42:01.000Z (about 11 years ago)
- Last Synced: 2025-03-28T03:22:28.321Z (7 months ago)
- Language: Ruby
- Homepage:
- Size: 1.78 MB
- Stars: 4
- Watchers: 0
- Forks: 1
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
- License: LICENSE
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README
# Loess
Simple Loess / Lowess interpolator built in Ruby, using Apache's [`LoessInterpolator`][1] through Rjb
## Installation
Add this line to your application's Gemfile:
gem 'loess'
And then execute:
$ bundle install
Or install it yourself as:
$ gem install loess
## Depencies
This gem depends on Rjb, which in turn depends on Java. [Rjb documentation][3] has more info.
## Usage
```Ruby
data = 1000.times.map { |i| [i, rand(10_000)] }
regression = Loess::Interpolator.interpolate(data)
regression = Loess::Interpolator.new(data).interpolate
# Change your settings
interpolator = Loess::Interpolator.new(data)
interpolator.bandwidth = 0.2
interpolator.robustness_factor = 10 # Go crazy
interpolator.interpolate
# Pass in settings through initialize
interpolator = Loess::Interpolator.new(data, bandwidth: 0.2, accuracy: 1e-10)
interpolator.interpolate
# Get a Spline Interpolator object
# Returns an instance of PolynomialSplineFunction, smoothed with the given data
# More documentation at [Apache Commons Maths][2]
interpolator.spline_interpolator
```
## Contributing
At this moment, there is little to contribute, but still:
1. Fork it ( https://github.com/swanandp/loess.rb/fork )
2. Create your feature branch (`git checkout -b my-new-feature`)
3. Commit your changes (`git commit -am 'Add some feature'`)
4. Push to the branch (`git push origin my-new-feature`)
5. Create a new Pull Request
[1]: http://commons.apache.org/proper/commons-math/jacoco/org.apache.commons.math3.analysis.interpolation/LoessInterpolator.java.html
[2]: http://commons.apache.org/proper/commons-math/jacoco/org.apache.commons.math3.analysis.polynomials/PolynomialSplineFunction.java.html
[3]: https://github.com/arton/rjb