Fig. 7

Singular value spectrum plot, the PSS and the SHMs. a Singular value spectrum plot of the top 8 singular values ranked in order of decreasing value. b The PSS with each group of bars corresponding to the value of |σ _i W _ij | for any parameter k _j . Only those for which the values are significant are plotted, i.e. for i=1,2,3. The parameters k _j are ordered by maxi=1,2,3|σ _i W _ij | and only top 20 are plotted. c Sensitivity heat map showing f _i,m (top panel) and \(f^{d}_{i,m}\) (bottom panel). The threshold is set to be 10 % of the global maximum of f _i,m (t). The only values of principal components (indexed by i) and variables (indexed by m) for which maxt f _i,m (t) is greater than this threshold have i<=3. These are ranked in order of decreasing size with the ratio change also given. The plotted f _i,m and \(f^{d}_{i,m}\) are coloured on the scale where their amplitudes are scaled to 1