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Logistic equations in the analysis of S-shaped curves
1San Diego Clinical Research Associates, Data Management Center, Santa Ana, CA 92705, USA.
Computers in Biology and Medicine
|May 1, 1995
Abstract:
A version of the logistic equation that provides useful descriptive parameters for the asymptote, slope and inflection point of the curve is presented and is suggested for use in empirically fitting S-shaped curves to data. A short SAS program that easily calculates the parameter values is shown.