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Strengths and Weaknesses of Global Positioning System (GPS) Data-Loggers and Semi-structured Interviews for Capturing Fine-scale Human Mobility: Findings from Iquitos, Peru

Figure 3

Concordance between SSI locations and raw GPS positions at 20 meters from a SSI location.

Concordance is expressed as the proportion of locations for which a SSI-GPS match was found. Panels show values for different location types, combinations of GPS data collection frequencies (15, 90 and 150 seconds) and number of GPS points used to define a visit (1, 5 and 10 points).

Figure 3

doi: https://doi.org/10.1371/journal.pntd.0002888.g003