Figure 7From: Tailor-made composite functions as tools in model choice: the case of sigmoidal vs bi-linear growth profilesAnalysis of a velocity field from an Au. saxatilis root. (A) A 6-parameter step-stool function including the parameter q but not b1 (red) and the 5-parameter version of the Richards function (blue) were fitted to the velocity data (gray dots; n = 3366). For details of (B), (C), and (D), see Fig. 6.Back to article page