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Figure 1 | BMC Medical Research Methodology

Figure 1

From: Measurement error in time-series analysis: a simulation study comparing modelled and monitored data

Figure 1

Simple linear regression analysis of Pearson correlation by distance. The figure presents results for (a) urban background ozone, (b) rural ozone, (c) urban background loge(NO2) and (d) rural loge(NO2). Each point on graphs represents the Pearson correlation (P) between daily standardised pollution concentrations measured at two distinct monitoring sites, plotted against the distance in km (D) between those sites. R-sq: estimate of the proportion of variance in Pearson correlation (P) explained by the fitted linear relationship with distance in km (D).

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