wip: need still to convert to typescript

.eslintrc.yml

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+extends: cheminfo-typescript

.github/workflows/nodejs-ts.yml

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+name: Node.js CI
+
+on:
+  push:
+    branches:
+      - main
+  pull_request:
+
+jobs:
+  nodejs:
+    # Documentation: https://github.com/zakodium/workflows#nodejs-ci
+    uses: zakodium/workflows/.github/workflows/nodejs.yml@nodejs-v1
+    with:
+      lint-check-types: true

.github/workflows/release.yml

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+name: Release
+
+on:
+  push:
+    branches:
+      - main
+
+jobs:
+  release:
+    # Documentation: https://github.com/zakodium/workflows#release
+    uses: zakodium/workflows/.github/workflows/release.yml@release-v1
+    with:
+      npm: true
+    secrets:
+      github-token: ${{ secrets.BOT_TOKEN }}
+      npm-token: ${{ secrets.NPM_BOT_TOKEN }}

.github/workflows/typedoc.yml

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+name: Deploy TypeDoc on GitHub pages
+
+on:
+  workflow_dispatch:
+  release:
+    types: [published]
+
+env:
+  NODE_VERSION: 18.x
+  ENTRY_FILE: 'src/index.ts'
+
+jobs:
+  deploy:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions/setup-node@v3
+        with:
+          node-version: ${{ env.NODE_VERSION }}
+      - name: Install dependencies
+        run: npm install
+      - name: Build documentation
+        uses: zakodium/typedoc-action@v2
+        with:
+          entry: ${{ env.ENTRY_FILE }}
+      - name: Deploy to GitHub pages
+        uses: JamesIves/github-pages-deploy-action@v4
+        with:
+          token: ${{ secrets.BOT_TOKEN }}
+          branch: gh-pages
+          folder: docs
+          clean: true

.gitignore

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+# Logs
+logs
+*.log
+npm-debug.log*
+
+# Runtime data
+pids
+*.pid
+*.seed
+
+# Directory for instrumented libs generated by jscoverage/JSCover
+lib-cov
+
+# Coverage directory used by tools like istanbul
+coverage
+
+# nyc test coverage
+.nyc_output
+
+# Grunt intermediate storage (http://gruntjs.com/creating-plugins#storing-task-files)
+.grunt
+
+# node-waf configuration
+.lock-wscript
+
+# Compiled binary addons (http://nodejs.org/api/addons.html)
+build/Release
+
+# Dependency directories
+node_modules
+jspm_packages
+
+# Optional npm cache directory
+.npm
+
+# Optional REPL history
+.node_repl_history
+
+lib
+
+lib-esm

.npmrc

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+package-lock=false

.prettierrc.json

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+{
+  "arrowParens": "always",
+  "semi": true,
+  "singleQuote": true,
+  "tabWidth": 2,
+  "trailingComma": "all"
+}

CHANGELOG.md

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+# Changelog

README.md

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+# 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 { PolynomialRegression } from 'ml-regression-polynomial-2d';
+
+const x = [50, 50, 50, 70, 70, 70, 80, 80, 80, 90, 90, 90, 100, 100, 100];
+const y = [
+  3.3, 2.8, 2.9, 2.3, 2.6, 2.1, 2.5, 2.9, 2.4, 3.0, 3.1, 2.8, 3.3, 3.5, 3.0,
+];
+const degree = 5; // setup the maximum degree of the polynomial
+
+const regression = new PolynomialRegression(x, y, degree);
+
+console.log(regression.predict(80)); // Apply the model to some x value. Prints 2.6.
+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(x, y));
+```
+
+## Options
+
+An `interceptAtZero` option is available, to force $f(0) = 0$. Also, a "powers array" can be specified.
+
+- Using `interceptAtZero`
+
+```js
+const regression = new PolynomialRegression(x, y, degree, {
+  interceptAtZero: true,
+});
+```
+
+- Using the powers array
+
+```js
+const powers = [0, 1, 2, 3, 4, 5];
+const regression = new PolynomialRegression(x, y, powers);
+```
+
+`powers` could also be `[1,2,3,4,5]`or`[1,3,5]` and so on.
+
+For intercepting at zero using an array, skip the zero in the array (the option `interceptAtZero` is ignored in this case.)
+
+## 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

package.json

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+{
+  "name": "ml-regression-polynomial-2d-2d",
+  "version": "0.0.0",
+  "description": "Polynomial Regression 2D",
+  "types": "./lib/index.d.ts",
+  "main": "./lib/index.js",
+  "module": "./lib-esm/index.js",
+  "files": [
+    "src",
+    "lib",
+    "lib-esm"
+  ],
+  "scripts": {
+    "check-types": "tsc --noEmit",
+    "clean": "rimraf lib lib-esm",
+    "eslint": "eslint src",
+    "eslint-fix": "npm run eslint -- --fix",
+    "prepack": "npm run tsc",
+    "prettier": "prettier --check src",
+    "prettier-write": "prettier --write src",
+    "test": "npm run test-only && npm run eslint && npm run prettier && npm run check-types",
+    "test-only": "vitest run --coverage",
+    "tsc": "npm run clean && npm run tsc-cjs && npm run tsc-esm",
+    "tsc-cjs": "tsc --project tsconfig.cjs.json",
+    "tsc-esm": "tsc --project tsconfig.esm.json"
+  },
+  "repository": {
+    "type": "git",
+    "url": "git+https://github.com/mljs/regression-polynomial-2d.git"
+  },
+  "keywords": [],
+  "license": "MIT",
+  "bugs": {
+    "url": "https://github.com/mljs/regression-polynomial-2d/issues"
+  },
+  "homepage": "https://github.com/mljs/regression-polynomial-2d#readme",
+  "devDependencies": {
+    "@vitest/coverage-v8": "^1.2.2",
+    "eslint": "^8.56.0",
+    "eslint-config-cheminfo-typescript": "^12.1.0",
+    "ml-spectra-processing": "^12.10.1",
+    "prettier": "^3.2.4",
+    "rimraf": "^5.0.5",
+    "typescript": "^5.3.3",
+    "vitest": "^1.2.2"
+  },
+  "dependencies": {
+    "cheminfo-types": "^1.7.2",
+    "ml-matrix": "^6.11.0",
+    "ml-regression-base": "^3.0.0"
+  }
+}