D3.js: Cutting-edge Data Visualization

Using the barcode chart

In this section, we will use the barcode chart with a more complex dataset and learn how to use the chart that is integrated within a table. Imagine that we have an application that monitors the mention of stocks on Twitter. One element of this fictional application might be a table that displays the aggregated information about the stock's mentions and the barcode chart with the mentions of the last day. We will assume that the data is already loaded on the page. Each data item will have the name of the stock, an array with mentions, and the average of mentions by hour. Refer to the following code:

var data = [ {name: 'AAPL', mentions: [...], byHour: 34.3}, {name: 'MSFT', mentions: [...], byHour: 11.1}, {name: 'GOOG', mentions: ...