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 ...

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 ...