rawls238 / pandas.js

Pandas in JavaScript for data analysis and visualization

pandas.js

Pandas for JavaScript

pandas.js is an open source (experimental) library mimicking the Python pandas library. It relies on Immutable.js as the NumPy logical equivalent. The main data objects in pandas.js are the pandas.Series and the pandas.DataFrame

Installation and use

$ npm install pandas-js

Importing pandas.Series and pandas.DataFrame

import { Series, DataFrame } from 'pandas-js';

Create a new Series

const ds_1 = new Series([1, 2, 3, 4], {name: 'My Data 1'});
console.log('This is a Series');
console.log(ds_1.toString());
console.log(`Sum: ${ds_1.sum()}`);
console.log(`Standard deviation: ${ds_1.std()}`);

const ds_2 = new Series([2, 3, 4, 5], {name: 'My Data 2'});
console.log('Summing two Series:');
console.log(ds_1.plus(ds_2).toString());

> This is a Series
0	1
1	2
2	3
Name: My Data 1, dtype: dtype(int)
Sum: 10
Standard deviation: 1
Summing two Series:
0	3
1	5
2	7
3	9
Name: , dtype: dtype(int)

Create a new DataFrame

const df = new DataFrame([
  {'x': 1, 'y': 2},
  {'x': 2, 'y': 3},
  {'x': 4, 'y': 5},
  ]);

console.log('This is a DataFrame');
console.log(df.toString());

This is a DataFrame
	|  x  |  y  |
--------------
0	|  1  |  2  |
1	|  2  |  3  |
2	|  4  |  5  |

Documentation

See the docs

Testing and build

$ npm run test
$ npm run build

Testing uses Jest. Building requires the babel compiler.