ml-matrix

What is ml-matrix?

The ml-matrix npm package provides a comprehensive set of tools for matrix operations and linear algebra. It is designed to be used in machine learning and data science applications, offering a variety of functionalities such as matrix creation, manipulation, decomposition, and solving linear systems.

What are ml-matrix's main functionalities?

Matrix Creation

This feature allows you to create matrices from arrays. The code sample demonstrates how to create a 2x2 matrix and print it.

const { Matrix } = require('ml-matrix');
const A = new Matrix([[1, 2], [3, 4]]);
console.log(A.toString());

Matrix Operations

This feature supports various matrix operations such as addition, subtraction, multiplication, etc. The code sample shows how to add two matrices.

const { Matrix } = require('ml-matrix');
const A = new Matrix([[1, 2], [3, 4]]);
const B = new Matrix([[5, 6], [7, 8]]);
const C = A.add(B);
console.log(C.toString());

Matrix Decomposition

This feature provides methods for matrix decomposition like Singular Value Decomposition (SVD), LU decomposition, etc. The code sample demonstrates how to perform SVD on a matrix.

const { Matrix, SingularValueDecomposition } = require('ml-matrix');
const A = new Matrix([[1, 2], [3, 4]]);
const svd = new SingularValueDecomposition(A);
console.log(svd.diagonalMatrix.toString());

Solving Linear Systems

This feature allows solving linear systems of equations. The code sample shows how to solve the system Ax = b.

const { Matrix } = require('ml-matrix');
const A = new Matrix([[1, 2], [3, 4]]);
const b = [5, 6];
const x = A.solve(b);
console.log(x.toString());

Other packages similar to ml-matrix

mathjs

Math.js is an extensive math library for JavaScript and Node.js. It provides a wide range of mathematical functions and supports complex numbers, matrices, units, and more. Compared to ml-matrix, math.js offers a broader range of mathematical functionalities but may not be as specialized in matrix operations and linear algebra.

numeric

Numeric.js is a library for numerical computations in JavaScript. It provides functions for matrix operations, solving linear systems, and performing numerical integration. While it offers similar functionalities to ml-matrix, it is more focused on numerical methods and less on machine learning applications.

ndarray

Ndarray is a JavaScript library for multidimensional arrays. It provides efficient storage and manipulation of large datasets. While it can be used for matrix operations, it is more general-purpose and not specifically tailored for linear algebra like ml-matrix.

README

ml-matrix

Matrix manipulation and computation library

Installation

$ npm install ml-matrix

:warning: This library uses ES2015 classes and extends Array. It is not compatible with versions of Node.js/io.js <2.0.0
Supported browsers are: Google Chrome, Safari and Microsoft Edge.

API Documentation

License

MIT

Changelog

1.4.0 (2016-08-03)

Features

• add concept of abstract matrix (cbefc9b)
• add method setSubMatrix (89b4242)
• add method with one argument template (b66ee9f)
• add repeat method (8b9eecb)
• add transposeView (fb0a0c9)

BREAKING CHANGES

• This is a non trivial change and could potentially break existing code. There is no known backward incompatibility though.