| cusp-package | Cusp Catastrophe Modeling | 
| attitudes | Multistability in political attitudes | 
| attitudeStartingValues | Multistability in political attitudes | 
| confint.cusp | Calculate Variance-Covariance Matrix for a Fitted Cusp Model Object | 
| cusp | Fit a Cusp Catastrophe Model to Data | 
| cusp.bifset | compute normal/symmetry factor borders of bifurcation set of cusp catastrophe | 
| cusp.extrema | Locate Extrema of Cusp Catastrophe Potential Function | 
| cusp.logist | Fit a Logistic Surface Model to Data | 
| cusp.logLike | Negative log-likelihood for Cobb's cusp density | 
| cusp.nc | Calculate the Normalizing Constant of Cobb's Cusp Density | 
| cusp.nc.C | Calculate the Normalizing Constant of Cobb's Cusp Density | 
| cusp.nc.c | Calculate the Normalizing Constant of Cobb's Cusp Density | 
| cusp.nc.vec | Calculate the Normalizing Constant of Cobb's Cusp Density | 
| cusp.nlogLike | Negative log-likelihood for Cobb's cusp density | 
| cusp.nlogLike.c | Negative log-likelihood for Cobb's cusp density | 
| cusp3d | Generate 3D plot of Cusp Catastrophe Model Fit | 
| cusp3d.surface | Generate 3D plot of the Cusp surface | 
| dcusp | Cobb's Cusp Distribution | 
| draw.cusp.bifset | Add Cusp Bifurcation Set Diagram to Existing Plot | 
| oliva | Synthetic cusp data set | 
| pcusp | Cobb's Cusp Distribution | 
| plot.cusp | Graphical Diagnostic Display of Cusp Catastrophe Data Fit | 
| plotCuspBifurcation | Display Fitted Data on Control Plane of Cusp Catastrophe. | 
| plotCuspDensities | Plot Cusp State Variable Densities Conditioned on Control Parameter Values | 
| plotCuspResidfitted | Residuals against Fitted Plot for Cusp Model Fit | 
| predict.cusp | Predict method for Cusp Model Fits | 
| print.cusp | Fit a Cusp Catastrophe Model to Data | 
| print.summary.cusp | Summarizing Cusp Catastrophe Model Fits | 
| qcusp | Cobb's Cusp Distribution | 
| rcusp | Cobb's Cusp Distribution | 
| summary.cusp | Summarizing Cusp Catastrophe Model Fits | 
| vcov.cusp | Calculate Variance-Covariance Matrix for a Fitted Cusp Model Object | 
| zeeman | Measurements from Zeeman's Catastrophe Machine | 
| zeeman1 | Measurements from Zeeman's Catastrophe Machine | 
| zeeman2 | Measurements from Zeeman's Catastrophe Machine | 
| zeeman3 | Measurements from Zeeman's Catastrophe Machine |