3.9 Raw Frequency of Pages

A plot showing the importance of all topics over time on a single graph, as measured by raw frequency of pages. The underlying data is in Table B.8. It is mostly a mess of dots that doesn't show very much, but what information can be gleaned by looking is described in the text below.

Figure 3.19: All ninety topics—raw frequency of pages.

As always, moving from the weighted count to the raw count just exacerbates the trends. Here are the individual topics; there are a lot of low lines here.

The same data as above, but with each topic shown as a separate facet

Figure 3.20: The ninety topics—raw frequency of pages (faceted).

And we’ll end with the animated version, again restricted to the last seventy-five years.