| ggtrendline | Add Trendline and Confidence Interval to 'ggplot' | 
| predFit | Predictions from a Fitted Model | 
| predFit.default | Predictions from a Fitted Model | 
| predFit.nls | Predictions from a Fitted Model | 
| SSexp2P | Self-Starting Nls 'exp2P' Regression Model | 
| SSexp3P | Self-Starting Nls 'exp3P' Regression Model | 
| SSpower2P | Self-Starting Nls 'power2P' Regression Model | 
| SSpower3P | Self-Starting Nls 'power3P' Regression Model | 
| stat_eq | Add Equation to 'ggplot' | 
| stat_rrp | Add R square and P-value to 'ggplot' | 
| trendline_sum | Summarized Results of Each Regression Model |