``javascript

const linearAlgebra = require('linear-algebra')();
const Matrix = linearAlgebra.Matrix;
const csv = require('csvtojson');

const convert = require('matrixa');

``

`javascript

const math = require('mathjs');
const csv = require('csvtojson');

const convert = require('matrixa');

`



toMatrixArray


In areas like computational decision science and operation research it is common to work with collections of matrices. This package aims to provide a parser of csv that contains data from not one but several matrices.
So this is a simple library extension for csvtojson to parse that csv with an array of matrices into a usable object of mathjs or linear-algebra npm library.

Installation

npm i matrixa

Example Usage

`javascript
csv()
.fromFile(csvFilePath)
.then((jsonObj) => {


console.log(convert.toMatrixArray(jsonObj, 'mathjs')[1]);


});
`

Returns:
`javascript
{ data: [ [ 1, 3, 0.33 ], [ 0.33, 1, 0.2 ], [ 3, 5, 1 ] ],
rows: 3,
cols: 3 }
`

`javascript
csv()
.fromFile(csvFilePath)
.then((jsonObj) => {


console.log(convert.toMatrixArray(jsonObj, 'linear-algebra')[1]);


});
`

Returns:
`javascript
Matrix {
_data: [ [ 1, 3, 0.33 ], [ 0.33, 1, 0.2 ], [ 3, 5, 1 ] ],
_size: [ 3, 3 ],
_datatype: undefined }
`

Documentation

| Argument | Description | Mandatory | Type | Rules |
|:-------------:|:---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------:|:----------:|:-----------------------:|:----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------:|
| jsonObj | jsonObj is the json array that contains the data from the csv. | True | JSON Array | Each row MUST contain the data of a matrix, rows separated by a blank column. |
| package | package speficies which package you are using. | True | String | This argument MUST be a string containing 'mathjs' or 'linear-algebra' depending on the package the user wants to use. |


Package Dependencies

- linear-algebra
- mathjs
- csvtomatrix

License

MIT

Contributing

Linting

- AIRBNB
AIRBNB JS CODE STYLE

$3

- Eslint v-4.19.1 // AIRBNB Configuration

$3

- Error check: npm run lint
- Error fix: npm run lint-fix or npm run lint -- --fix`