https://github.com/mljs/regression-polynomial-2d
https://github.com/mljs/regression-polynomial-2d
Last synced: 4 months ago
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- Host: GitHub
- URL: https://github.com/mljs/regression-polynomial-2d
- Owner: mljs
- License: mit
- Created: 2024-05-03T09:57:22.000Z (about 1 year ago)
- Default Branch: main
- Last Pushed: 2024-05-16T13:52:13.000Z (about 1 year ago)
- Last Synced: 2025-02-24T02:39:56.332Z (4 months ago)
- Language: TypeScript
- Homepage: https://mljs.github.io/regression-polynomial-2d/
- Size: 66.4 KB
- Stars: 1
- Watchers: 6
- Forks: 0
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
- Changelog: CHANGELOG.md
- License: LICENSE
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README
# regression-polynomial-2d
[![NPM version][npm-image]][npm-url]
[![npm download][download-image]][download-url]
[![build status][ci-image]][ci-url]
[![Test coverage][codecov-image]][codecov-url]
Polynomial Regression.
## Installation
`$ npm i ml-regression-polynomial-2d`
## Usage
```js
import { PolynomialRegression2D } from 'ml-regression-polynomial-2d';
const inputs = {
x: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20],
y: [
10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28,
29, 30,
],
};
const z = [
20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38,
39, 40,
];
const order = 2; // setup the maximum degree of the polynomial
const regression = new PolynomialRegression2D(inputs, z, { order });
//prediction
console.log(regression.predict({ x: 0.5, y: 1.5 })); // Apply the model to some x tuple.
console.log(regression.predict({ x: [0.5, 1.5], y: [1.5, 2.5] })); // Apply the model to an array of points tuple.
console.log(regression.coefficients); // Prints the coefficients in increasing order of power (from 0 to degree).
console.log(regression.toString(3)); // Prints a human-readable version of the function.
console.log(regression.toLaTeX());
console.log(regression.score); // { r, r2, chi2, rmsd } statistical scores
console.log(regression.getScore(x, y)); // calculate the score for another database
```
## License
[MIT](./LICENSE)
[npm-image]: https://img.shields.io/npm/v/ml-regression-polynomial-2d.svg?style=flat-square
[npm-url]: https://npmjs.org/package/ml-regression-polynomial-2d
[download-image]: https://img.shields.io/npm/dm/ml-regression-polynomial-2d.svg?style=flat-square
[download-url]: https://npmjs.org/package/ml-regression-polynomial-2d
[codecov-image]: https://img.shields.io/codecov/c/github/mljs/regression-polynomial-2d.svg
[codecov-url]: https://codecov.io/gh/mljs/regression-polynomial-2d
[ci-image]: https://github.com/mljs/regression-polynomial-2d/workflows/Node.js%20CI/badge.svg?branch=main
[ci-url]: https://github.com/mljs/regression-polynomial-2d/actions?query=workflow%3A%22Node.js+CI%22