The Fitting of a Generalization of the Logistic Curve
- 1 March 1961
- journal article
- research article
- Published by JSTOR in Biometrics
- Vol. 17 (1) , 89-+
- https://doi.org/10.2307/2527498
Abstract
Methods are expounded for fitting the curve defined by the differential equation dW/dt = [kappa] W[l -(W/A)1/[theta]. When sample values of lnW are independent and of equal variance. Tables to help the computation are provided. The effect on the accuracy of the parameter estimates of the range of the curve covered by the data is discussed, and also the difficulties involved in extending the method to the equation dW/dt = [alpha]W [zeta] -BW [eta].This publication has 2 references indexed in Scilit:
- A Flexible Growth Function for Empirical UseJournal of Experimental Botany, 1959
- The Estimation of Non-Linear Parameters by `Internal Least Squares'Biometrika, 1948