FIG. . Test set MAE for different RPA correlation energy extrapolations. The x axis denotes how many points are used to extrapolate while the y axis denotes the screened cutoff used to generated the point at lowest energy. The screened cutoffs of the remaining points can be obtained by incrementing the y axis value by 1 Ryd Npoints times. The RPA correlation energy for every species was recalculated using the same set of extrapolation points for each cell in the heatmap.