Cusp-Catastrophe Model Fitting Using Maximum Likelihood

Cobb's maximum likelihood method for cusp-catastrophe modeling (Grasman, van der Maas, & Wagenmakers, 2009, JSS, 32:8; Cobb, L, 1981, Behavioral Science, 26:1, 75--78). Includes a cusp() function for model fitting, and several utility functions for plotting, and for comparing the model to linear regression and logistic curve models.


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install.packages("cusp")

2.3.3 by Raoul Grasman, 4 years ago


Browse source code at https://github.com/cran/cusp


Authors: Raoul P. P. P. Grasman [aut, cre, cph]


Documentation:   PDF Manual  


GPL-2 license


Imports stats, graphics, grDevices, utils

Suggests plot3D


See at CRAN