Figure 3

Plot (a) shows the Di Martino model, \({k}_{s,DM}\), fitted to data, whilst plot (b) shows the logistic model fit, \({k}_{s,L}\).
Plot (a) shows the Di Martino model, \({k}_{s,DM}\), fitted to data, whilst plot (b) shows the logistic model fit, \({k}_{s,L}\).