The evolution of P/F vs T/K raises important questions

[Jorge_Stolfi]

More interesting may be a plot of parags as dots with (count of puffs on the head line) vs (total glyphs on head line) as coordinates, color-coded by section.

Here you go, its hard to really tell due to the number of P/F being fairly constrained. Total rise modestly with paragraph size.

Thanks for the plots!

On the first graph, it is hard to tell whether there is any difference between sections because all the dots are jumbled together (so the overall color depends on the order of plotting).  

It may be that the slight increase in puff use is not due to parag size per se, but rather it varies by section, and the sections with more puffs per parag also tend to have longer parags (even if most puffs are still in the head lines).

In the second plot, it seems that the puff/glyph ratio on the head lines is largest for the Herbal-A sections and smallest for the Stars section.  Although it is hard to tell because the dots of HerbalB-3b, Stars-4c, and Bio-4a have colors that are easily confused. (The color channels in out vision have rather low spatial resolution, so the colors or small things get mixed with those of their surroundings.)

All the best, --stolfi