5.12 Time: Slope charts

5.12.1 Data & Packages & functions

5.12.2 Graph(s)

  • Figure 5.21 and 5.22 depict slope graphs (and the first lines of the underlying data) that can be plotted relatively easily.
  • Questions:
    • What does the graph show? What are the underlying variables (and data)?
    • How many scales/mappings does it use? Could we reduce them?
    • What do you like, what do you dislike about the figure? What is good, what is bad?
    • What kind of information could we add to the graph (if any)?
    • How would you approach a replication of the graph?



Year Survival Type
5 Year 99 Prostate
10 Year 95 Prostate
15 Year 87 Prostate
20 Year 81 Prostate
5 Year 96 Thyroid
10 Year 96 Thyroid
Slope graph 1

Figure 5.21: Slope graph 1



Year Country GDP
Year1970 Sweden 46.9
Year1979 Sweden 57.4
Year1970 Netherlands 44.0
Year1979 Netherlands 55.8
Year1970 Norway 43.5
Year1979 Norway 52.2
Slope graph 2

Figure 5.22: Slope graph 2