based on a reparameterized richards process error model , these procedures allow the quantification and independent evaluation of the three major properties of a sigmoid growth curve : size : a measure of the asymptote approached by the growth process , rate : a measure of the approximate amount of time required to complete growth , and shape : a quantity which indicates the specific path or trajectory taken by the growth process to approach the asymptote within the time constraints of the growing period .
C0184661
procedures
C0220825
evaluation