Data Wrangling with JavaScript

appendix b: Data-Forge cheat sheet

Updates

You can find an updated and evolving version of this cheat sheet online at http://dfcheatsheet.the-data-wrangler.com.

Loading data into a DataFrame

You can load data from memory into a Data-Forge DataFrame:

let data = [ /* ... your data ... */ ];
let df = new dataForge.DataFrame(data);
console.log(df.toString());

Loading CSV files

Load data from a CSV file into a DataFrame:

let df = dataForge
    .readFileSync("./example.csv", { dynamicTyping: true })
    .parseCSV();
console.log(df.head(5).toString()); // Preview first 5 rows

Loading JSON files

Also load a JSON file into a DataFrame:

let df = dataForge
    .readFileSync("./example.json")
    .parseJSON();

console.log(df.tail(5).toString()); // Preview last 5 rows. ...