get-parabola
This module was created for have ability to receive quadratic fit coeffs for the condition like a*x^2 + bx + c
by different ways.
Install
$ yarn add get-parabola
Usage
; // Or any separate method of the class if necessary:;
So, you can use methods below
- by2Points // object like
({ k, b })
- getLineBy2Points // function like
x => number
- by3Points // object like
({ a, b, c, error: string|null })
- getLineBy3Points // function like
x => number
or null - byLeastSquaresApproximation // object like
({ a, b, c })
- getBrokenLineByPoints // function like
x => number
- getLineByLeastSquaresApproximation // function like
x => number
by2Points
const coeffs = Coeffs; console;// { k: 1,// b: 0 }
getLineBy2Points
const lineFn = Coeffs; console;// 5
by3Points
// CASE 1:const coeffs = Coeffs; // CASE 2: And argument could be an Array like [{ x, y }] (but 3 points!)const coeffs2 = Coeffs; console;console;// { a: 1,// b: 0,// c: 0,// error: null }// But error could be string as explanation, check !error before use result.
getLineBy3Points
const lineFn = Coeffs; console;// 25
byLeastSquaresApproximation
const coeffs = Coeffs; console;// { a: -0.015889095754389806,// b: 0.7155842733545066,// c: 1.744177344577082 }
getLineByLeastSquaresApproximation
const lineFn = Coeffs; console;// 4.92487131748987
getBrokenLineByPoints
const lineFn = Coeffs; console;// 12// This function gives result in lines between your points or interpolate in// external cases
Commands
npm run clean
- Removelib/
directorynpm test
- Run tests with linting and coverage results.npm test:only
- Run tests without linting or coverage.npm test:watch
- You can even re-run tests on file changes!npm test:prod
- Run tests with minified code.npm run test:examples
- Test written examples on pure JS for better understanding module usage.npm run lint
- Run ESlint with airbnb-confignpm run cover
- Get coverage report for your code.npm run build
- Babel will transpile ES6 => ES5 and minify the code.npm run prepublish
- Hook for npm. Do all the checks before publishing your module.
License
MIT © Den Pol