https://github.com/andreasmadsen/distributions
A collection of probability distribution functions
Science Score: 13.0%
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○Scientific vocabulary similarity
Low similarity (9.7%) to scientific vocabulary
Repository
A collection of probability distribution functions
Basic Info
- Host: GitHub
- Owner: AndreasMadsen
- License: mit
- Language: JavaScript
- Default Branch: master
- Size: 25.4 KB
Statistics
- Stars: 41
- Watchers: 3
- Forks: 10
- Open Issues: 1
- Releases: 0
Metadata Files
README.md
distributions
A collection of probability distribution functions
Installation
sheel
npm install distributions
Example
```javascript var distributions = require('distributions'); var normal = distributions.Normal(1 /* mean /, 2 / std deviation */);
console.log(normal.pdf(1)); // 0.199... console.log(normal.cdf(1)); // 0.5 console.log(normal.inv(1)); // Infiniy
console.log(normal.mean()); // 1 console.log(normal.median()); // 1 console.log(normal.variance()); // 4 ```
Documentation
All distributions in this module takes some or no arguments and can have a default value. They are also created by calling the constructor:
javascript
// both do the same
var uniform = distributions.Uniform(-2, 2);
var uniform = new distributions.Uniform(-2, 2);
The instance then has 3 probability functions:
javascript
var y = uniform.pdf(x); // probability density function
var p = uniform.cdf(q); // cumulative distribution function
var q = uniform.inv(p); // quantile function
and also 3 general methods for the median, mean and variance:
javascript
uniform.median();
uniform.mean();
uniform.variance();
The currently implemented distributions are listed bellow.
Uniform(a = 0, b = 1) - The Uniform Distribution
Create a uniform distribution, with a range from a to b. Note that
uniform.inv(p) will return NaN outside the range from 0 to 1,
and that uniform.inv(0) == a and uniform.inv(1) == b.
Normal(mean = 0, sd = 1) - The Normal Distribution
Create a normal distribution, with a custom mean (mean) and standard deviation
(sd).
Studentt(df) - The Student t Distribution
Create a student t distribution, with a degree of freedom set to df.
Binomial(properbility, size) - The Binomial Distribution
Create a binomial distribution, with a a given properbility of success and
sample size.
Testing
All functions are tested by comparing with a mathematical reference either MatLab, Maple or R.
License
The software is license under "MIT"
Copyright (c) 2013 Andreas Madsen
Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
Owner
- Name: Andreas Madsen
- Login: AndreasMadsen
- Kind: user
- Location: Copenhagen, Denmark
- Company: MILA
- Website: https://andreasmadsen.github.io/
- Twitter: andreas_madsen
- Repositories: 151
- Profile: https://github.com/AndreasMadsen
Researching interpretability for Machine Learning because society needs it.
GitHub Events
Total
- Watch event: 5
- Fork event: 1
Last Year
- Watch event: 5
- Fork event: 1
Committers
Last synced: about 2 years ago
Top Committers
| Name | Commits | |
|---|---|---|
| Andreas Madsen | a****k@g****m | 13 |
| Michaël Zasso | t****s@p****m | 1 |
Issues and Pull Requests
Last synced: 12 months ago
All Time
- Total issues: 2
- Total pull requests: 4
- Average time to close issues: 4 days
- Average time to close pull requests: over 2 years
- Total issue authors: 2
- Total pull request authors: 4
- Average comments per issue: 1.0
- Average comments per pull request: 1.0
- Merged pull requests: 2
- Bot issues: 0
- Bot pull requests: 0
Past Year
- Issues: 0
- Pull requests: 0
- Average time to close issues: N/A
- Average time to close pull requests: N/A
- Issue authors: 0
- Pull request authors: 0
- Average comments per issue: 0
- Average comments per pull request: 0
- Merged pull requests: 0
- Bot issues: 0
- Bot pull requests: 0
Top Authors
Issue Authors
- oleersoy (1)
- simoneb (1)
Pull Request Authors
- mhink (2)
- targos (1)
- AndreasMadsen (1)
- marcolanaro (1)
Top Labels
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Packages
- Total packages: 1
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Total downloads:
- npm 467,318 last-month
- Total docker downloads: 116,882
- Total dependent packages: 26
- Total dependent repositories: 670
- Total versions: 7
- Total maintainers: 1
npmjs.org: distributions
A collection of probability distribution functions
- Homepage: https://github.com/AndreasMadsen/distributions#readme
- License: MIT
-
Latest release: 2.2.0
published about 2 years ago
Rankings
Maintainers (1)
Dependencies
- tap ^12.1.0 development
- cephes ^1.1.2