Fig. 8

Principal Components, Singular Value Analysis plot and Time Series with Sensitivity plot. a Time series of several components of the plant clock model with constant light forcing (top panel) and first three principal components U ₁, U ₂ and U ₃ plotted for the variables selected (bottom panel). b Singular Value Analysis plot showing the effect on the singular values when removing one variable from the analysis in turn. Only 8 variables with the highest mean difference in the singular values from the original set of singular values are plotted. c Time Series with Sensitivity plot where only trajectories with the times marked when f _i,m (t) for all i,m is larger than 30 % of the maximum value