Chapter 1: Introduction to Creating Graphs
The Value of a Graph
A picture is worth a thousand words. It is debatable whether this is an old Chinese proverb, or whether it is an adage attributable to a notable historic figure such as Napoleon Bonaparte or Ivan Turgenev in 1862 or Fred R. Barnard in 1927. Whoever said it, the message is clear. For modern data analysis, information is easier to grasp and decode when it is presented in an appropriate visual form.
Figure 1.1 shows a table of the mean city ...