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Regularity and Predictability of Human Mobility in Personal Space

Figure 3

The effect of life context.

Probability density (color represents density; discrete probabilities were linearly interpolated for graphical clarity) of mobility (y-axes) as a function of four different contextual variables (x-axes) that vary across different time scales, holding all other variables at constant values (see Supporting Information S1 for details). The mean function, μ (black trace) with 95% confidence intervals (CI; dashed black trace), has been overlaid on the density to show central tendency in each panel. (A) Mobility declines with increasing age, where expected mobility decreases by a factor of 0.83 as age increases from 71 to 97 years. (B) Mobility increases with increasing walking speed among the peer reference group (expected mobility increases by a factor of 1.9 as peer referenced walking speed increases from 20 cm/s to 260 cm/s), (C) maximum daily outdoor temperature (expected mobility increases by a factor of 1.12 as maximum temperature increases from 5°C to 37°C), and (D) socioeconomic status (expected mobility doubles as socioeconomic status increases from a score of 8 to 65).

Figure 3

doi: https://doi.org/10.1371/journal.pone.0090256.g003