This example subgroups by department the 3D vertical bar chart of total sales for each site that is shown in Specifying the Sum Statistic in Bar Charts. In addition to subdividing the bars to show the ...

For creating output with drill-down for the Web, the example shows how to explicitly name the HTML files and open and close them throughout the program specify names and destination for the GIF files ...

Roula Khalaf, Editor of the FT, selects her favourite stories in this weekly newsletter. If you want to sow division among chartmakers, ask them if pie charts are a good idea. If you want to raise a ...

This post recommends using Trellis plots instead of 3D bar charts for three-dimensional (three variable) data. In Winner of the Bad Graph Contest Announced, I promised to present alternatives to Excel ...

Forbes contributors publish independent expert analyses and insights. I help people communicate data clearly with graphs. In my last post I criticized a figure showing Facebook valuations over time.