フリー問題

問題文

A yearly report of sensor data must convey both the long-run direction and the within-day pattern. Which treatment of the time axis serves both?

選択肢

1. One figure at the coarsest grain, with the within-day pattern described in the caption, so a single panel carries both parts of the story for the reader to follow.
2. Two figures at two grains: a coarse one over the whole year for the direction, and a fine one over a representative period for the within-day shape.
3. A single figure with two vertical axes at different scales.
4. One figure at the finest available grain over the whole year, because the coarse direction is still visible in fine data while the reverse is not true, and using a single figure avoids asking the reader to combine two views in their head.