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w-cluster

v1.0.20

Published

A tool for data PCA(Principle Component Analysis) and cluster(K-Means & K-Medoids).

Downloads

80

Readme

w-cluster

A tool for data PCA(Principle Component Analysis) and cluster(K-Means & K-Medoids).

language npm version license gzip file size npm download npm download jsdelivr download

Documentation

To view documentation or get support, visit docs.

Example

To view some examples for more understanding, visit examples:

PCA: ex-PCA.html [source code]

cluster: ex-cluster.html [source code]

cluster with web worker: ex-cluster-webworker.html [source code] * WebWorkers(from blob) does not support IE11.

Installation

Using npm(ES6 module):

Note: w-cluster is mainly dependent on ml-pca, ml-kmeans and k-medoids.

npm i w-cluster

Example for PCA(Principle Component Analysis):

Link: [dev source code]


async function testPCA() {

    let mat = [
        [40, 50, 60],
        [50, 70, 60],
        [80, 70, 90],
        [50, 60, 80]
    ]
    console.log('mat', mat)
    // => mat [ [ 40, 50, 60 ], [ 50, 70, 60 ], [ 80, 70, 90 ], [ 50, 60, 80 ] ]

    let resMat = await WCluster.PCA(mat, { nCompNIPALS: 2 })
    console.log(resMat)
    // => [
    //   [ -1.704002697669786, 0.43087564048799354 ],
    //   [ -0.2509699164590232, -1.1519035967558147 ],
    //   [ 1.9913098008410954, 0.23244503334983269 ],
    //   [ -0.03633718671228592, 0.48858292291798827 ]
    // ]

    let mat2 = [
        [1040, 50, 60],
        [1050, 70, 60],
        [1080, 70, 90],
        [1050, 60, 80]
    ]
    console.log('mat2', mat2)
    // => mat [ [ 1040, 50, 60 ], [ 1050, 70, 60 ], [ 1080, 70, 90 ], [ 1050, 60, 80 ] ]

    let resMat2 = await WCluster.PCA(mat2, { nCompNIPALS: 2 })
    console.log(resMat2)
    // => [
    //   [ -1.704002697669786, 0.43087564048799354 ],
    //   [ -0.2509699164590232, -1.1519035967558147 ],
    //   [ 1.9913098008410954, 0.23244503334983269 ],
    //   [ -0.03633718671228592, 0.48858292291798827 ]
    // ]

    let mat3 = [
        [11040, 50, 60],
        [13050, 70, 60],
        [15080, 70, 90],
        [17050, 60, 80]
    ]
    console.log('mat3', mat3)
    // => mat [ [ 11040, 50, 60 ], [ 13050, 70, 60 ], [ 15080, 70, 90 ], [ 17050, 60, 80 ] ]

    let resMat3 = await WCluster.PCA(mat3, { nCompNIPALS: 2 })
    console.log(resMat3)
    // => [
    //   [ -1.8599655569892897, 0.4908764271508211 ],
    //   [ -0.3950941652793108, -1.0977355294143445 ],
    //   [ 1.3430199944041517, -0.17213692267477554 ],
    //   [ 0.912039727864449, 0.778996024938299 ]
    // ]

}
testPCA()
    .catch((err) => {
        console.log(err)
    })

Example for cluster:

Link: [dev source code]


async function testCluster() {
    let mode = 'k-medoids'

    let mat = [
        [40, 50, 60],
        [50, 70, 60],
        [80, 70, 90],
        [50, 60, 80]
    ]
    console.log('mat', mat)
    // => mat [ [ 40, 50, 60 ], [ 50, 70, 60 ], [ 80, 70, 90 ], [ 50, 60, 80 ] ]

    let resMat = await WCluster.cluster(mat, { mode, kNumber: 2, nCompNIPALS: 2 })
    console.log(JSON.stringify(resMat, null, 2))
    // => {
    //   "keys": null,
    //   "ginds": [
    //     [ 0, 1, 3 ],
    //     [ 2 ]
    //   ],
    //   "gmat": [
    //     [
    //       [ -1.704002697669786, 0.43087564048799354 ],
    //       [ -0.2509699164590232, -1.1519035967558147 ],
    //       [ -0.03633718671228592, 0.48858292291798827 ]
    //     ],
    //     [
    //       [ 1.9913098008410954, 0.23244503334983269 ]
    //     ]
    //   ],
    //   "gltdt": [
    //     [
    //       [ 40, 50, 60 ],
    //       [ 50, 70, 60 ],
    //       [ 50, 60, 80 ]
    //     ],
    //     [
    //       [ 80, 70, 90 ]
    //     ]
    //   ]
    // }

    let mat2 = [
        [1040, 50, 60],
        [1050, 70, 60],
        [1080, 70, 90],
        [1050, 60, 80]
    ]
    console.log('mat2', mat2)
    // => mat [ [ 1040, 50, 60 ], [ 1050, 70, 60 ], [ 1080, 70, 90 ], [ 1050, 60, 80 ] ]

    let resMat2 = await WCluster.cluster(mat2, { mode, kNumber: 2, nCompNIPALS: 2 })
    console.log(JSON.stringify(resMat2, null, 2))
    // => {
    //   "keys": null,
    //   "ginds": [
    //     [ 0, 1, 3 ],
    //     [ 2 ]
    //   ],
    //   "gmat": [
    //     [
    //       [ -1.704002697669786, 0.43087564048799354 ],
    //       [ -0.2509699164590232, -1.1519035967558147 ],
    //       [ -0.03633718671228592, 0.48858292291798827 ]
    //     ],
    //     [
    //       [ 1.9913098008410954, 0.23244503334983269 ]
    //     ]
    //   ],
    //   "gltdt": [
    //     [
    //       [ 1040, 50, 60 ],
    //       [ 1050, 70, 60 ],
    //       [ 1050, 60, 80 ]
    //     ],
    //     [
    //       [ 1080, 70, 90 ]
    //     ]
    //   ]
    // }

    let mat3 = [
        [11040, 50, 60],
        [13050, 70, 60],
        [15080, 70, 90],
        [17050, 60, 80]
    ]
    console.log('mat3', mat3)
    // => mat [ [ 11040, 50, 60 ], [ 13050, 70, 60 ], [ 15080, 70, 90 ], [ 17050, 60, 80 ] ]

    let resMat3 = await WCluster.cluster(mat3, { mode, kNumber: 2, nCompNIPALS: 2 })
    console.log(JSON.stringify(resMat3, null, 2))
    // => {
    //   "keys": null,
    //   "ginds": [
    //     [ 1, 2, 3 ],
    //     [ 0 ]
    //   ],
    //   "gmat": [
    //     [
    //       [ -0.3950941652793108, -1.0977355294143445 ],
    //       [ 1.3430199944041517, -0.17213692267477554 ],
    //       [ 0.912039727864449, 0.778996024938299 ]
    //     ],
    //     [
    //       [ -1.8599655569892897, 0.4908764271508211 ]
    //     ]
    //   ],
    //   "gltdt": [
    //     [
    //       [ 13050, 70, 60 ],
    //       [ 15080, 70, 90 ],
    //       [ 17050, 60, 80 ]
    //     ],
    //     [
    //       [ 11040, 50, 60 ]
    //     ]
    //   ]
    // }

    let ltdt = [
        { name: 'Cameron', a: 40, b: 50, c: 60 },
        { name: 'Buckley', a: 50, b: 70, c: 60 },
        { name: 'Paul', a: 80, b: 70, c: 90 },
        { name: 'Fawcett', a: 50, b: 60, c: 80 },
    ]
    console.log('ltdt', ltdt)
    // => ltdt [
    //     { name: 'Cameron', a: 40, b: 50, c: 60 },
    //     { name: 'Buckley', a: 50, b: 70, c: 60 },
    //     { name: 'Paul', a: 80, b: 70, c: 90 },
    //     { name: 'Fawcett', a: 50, b: 60, c: 80 }
    // ]

    let resLtdt = await WCluster.cluster(ltdt, { mode, kNumber: 2, nCompNIPALS: 2 })
    console.log(JSON.stringify(resLtdt, null, 2))
    // => {
    //   "keys": [ "a", "b", "c" ],
    //   "ginds": [
    //     [ 0, 1, 3 ],
    //     [ 2 ]
    //   ],
    //   "gmat": [
    //     [
    //       [ -1.704002697669786, 0.43087564048799354 ],
    //       [ -0.2509699164590232, -1.1519035967558147 ],
    //       [ -0.03633718671228592, 0.48858292291798827 ]
    //     ],
    //     [
    //       [ 1.9913098008410954, 0.23244503334983269 ]
    //     ]
    //   ],
    //   "gltdt": [
    //     [
    //       { "name": "Cameron", "a": 40, "b": 50, "c": 60 },
    //       { "name": "Buckley", "a": 50, "b": 70, "c": 60 },
    //       { "name": "Fawcett", "a": 50, "b": 60, "c": 80 }
    //     ],
    //     [
    //       { "name": "Paul", "a": 80, "b": 70, "c": 90 }
    //     ]
    //   ]
    // }

}
testCluster()
    .catch((err) => {
        console.log(err)
    })

In a browser(UMD module):

Note: w-cluster does not dependent on any package.

[Necessary] Add script for w-cluster.


<!-- for basic -->
<script src="https://cdn.jsdelivr.net/npm/[email protected]/dist/w-cluster.umd.js"></script>

<!-- for web workers -->
<script src="https://cdn.jsdelivr.net/npm/[email protected]/dist/w-cluster.wk.umd.js"></script>