Figure 6
From: Long-distance air pressure differences correlate with European rain
Best subset regression and validation for January rainfall in Slovenia. The black line represents the actual rainfall 1950–2019—average marked by the horizontal. In the left part of the graph (1950–2009), the blue line shows the rainfall \(\widehat{Y}\) as modelled by the regression equation in row 1 of Table 2: Other atmospheric indices beside MOI2 and WeMOI were not relevant for this example. The right part illustrates the validation in the years 2010–2019 with the red line as the predicted rainfall that resulted from inserting the MOI2 and WeMOI values observed in 2010–2019 into the regression equation from 1950 to 2009. The pink area is the 70% confidence interval of prediction (see Methods below and Statistical Methods in Suppl. ch. 2.2).
