https://github.com/morganherlocker/cubic-spline

interpolate for X in a 2d array
https://github.com/morganherlocker/cubic-spline

Last synced: 18 days ago
JSON representation

interpolate for X in a 2d array

• Host: GitHub
• URL: https://github.com/morganherlocker/cubic-spline
• Owner: morganherlocker
• License: mit
• Created: 2014-09-10T22:00:37.000Z (about 10 years ago)
• Default Branch: master
• Last Pushed: 2023-02-21T15:23:56.000Z (over 1 year ago)
• Last Synced: 2024-10-19T05:26:47.242Z (26 days ago)
• Language: TypeScript
• Size: 39.1 KB
• Stars: 97
• Watchers: 5
• Forks: 23
• Open Issues: 4
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

Awesome Lists containing this project

README

        
# cubic-spline

A slight modification of [Ivan Kuckir's cubic spline implementation](http://blog.ivank.net/interpolation-with-cubic-splines.html), cubic-spline guesses the value of y for any x value on a line. This is helpful for smoothing line graphs.

## installation

```sh

npm install cubic-spline

```

## usage

```js

const Spline = require('cubic-spline');

const xs = [1, 2, 3, 4, 5];

const ys = [9, 3, 6, 2, 4];

// new a Spline object

const spline = new Spline(xs, ys);

// get Y at arbitrary X

console.log(spline.at(1.4));

// interpolate a line at a higher resolution

for (let i = 0; i < 50; i++) {

  console.log(spline.at(i * 0.1));

}

```

## test

```sh

npm test

```

## lint

```sh

npm run lint

```