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cusp  

Cusp-Catastrophe Model Fitting Using Maximum Likelihood
View on CRAN: Click here


Download and install cusp package within the R console
Install from CRAN:
install.packages("cusp")

Install from Github:
library("remotes")
install_github("cran/cusp")

Install by package version:
library("remotes")
install_version("cusp", "2.3.8")



Attach the package and use:
library("cusp")
Maintained by
Raoul P. P. P. Grasman
[Scholar Profile | Author Map]
All associated links for this package
First Published: 2009-11-06
Latest Update: 2024-08-17
Description:
Cobb's maximum likelihood method for cusp-catastrophe modeling (Grasman, van der Maas, and Wagenmakers (2009) ; Cobb (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.
How to cite:
Raoul P. P. P. Grasman (2009). cusp: Cusp-Catastrophe Model Fitting Using Maximum Likelihood. R package version 2.3.8, https://cran.r-project.org/web/packages/cusp. Accessed 25 Aug. 2026.
Previous versions and publish date:
(2026-07-09 07:29), 2.2 (2009-11-06 10:17), 2.3.1 (2015-06-26 13:34), 2.3.3 (2015-08-10 18:31), 2.3.6 (2022-08-29 09:40)
Other packages that cited cusp R package
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Complete documentation for cusp
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