Note: Numbers without superscript indicate R2at sine 4, a = R2 at sine 3, b =R2 at sine 2, c = R2at sine1.
Figure 1. Example of over-fitting for N2 for Block One. The plot of Sine 2 is considered an appropriately fitted function while Sine 3 is considered overfitted by the appearance of the fit line with high frequencies being plotted.