Line Step from Scientific Research

Summary of the error as a function of outdoor air temperature, showing the same percentiles as in a. Observations are grouped into 50 bins with equal numbers of observations; hence, they have variable widths. Bins are coloured according to the average number of HDDs (red) and CDDs (blue) in the observations they contain, giving an indication of balance point temperatures. See Supplementary Figs. 46–88 for individual plots of each region.

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