Vai

io If you want to write script for Vai.io, you should know a few things. Vai.io is a JavaScript library that makes it easy to create interactive data visualizations. It's built on top of the D3.js library and uses the Vega-Lite visualization grammar. To use Vai.io, you'll need to include the following JavaScript files in your HTML page: vai.js - The Vai.io library d3.js - The D3.js library vega-lite.js - The Vega-Lite library You can find these files in the Vai.io GitHub repository. Once you've included the necessary JavaScript files, you can create a Vai.io visualization by creating a Vai.io object and passing it a Vega-Lite specification. For example: var vlSpec = { "$schema": "https://vega.github.io/schema/vega-lite/v2.json", "data": { "url": "data.json" }, "mark": "circle", "encoding": { "x": {"field": "x", "type": "quantitative"}, "y": {"field": "y", "type": "quantitative"}, "color": {"field": "c", "type": "nominal"} } }; var vai = new Vai(vlSpec); The code above will create a Vai.io visualization with the following properties: The data for the visualization will be loaded from the data.json file. The visualization will use circles to mark the data points. The x-coordinate of the data points will be encoded by the x field in the data.json file. The y-coordinate of the data points will be encoded by the y field in the data.json file. The color of the data points will be encoded by the c field in the data.json file. You can find more information about the Vai.io API in the Vai.io documentation.