Displaying category data with a bar chart visualization

We will now move on to talk about the bar chart visualization. This visualization is designed to display a simple bar chart reflecting the relationship between a set of categories and their associated values.

Basically, it works much like you would expect a Microsoft Excel spreadsheet graph to work by taking a series of text value pairs and graphing their relative sizes.

An example from the Grafana documentation using the TestData data source should make things clear. Here, we select the CSV file scenario and the browser_marketshare.csv file option. By setting the visualization to Bar chart, you should see a graph of various web browsers and their relative market share depicted as a bar chart.

Figure 8.7 – Browser market share bar chart

Switching to Table view shows the dataset is nothing more than a series of browser/market share category/value pairs. Can we do something similar with...