| dFTG | FTG Density Function |
| dtailw | TailW Density function |
| fittail | TailW Maximum Likelihood Estimation |
| lFTG | FTG Log-likelihood Function |
| ltailw | TailW Log-likelihood function |
| pFTG | FTG Probability Function |
| ptailw | TailW Probability Function |
| qFTG | FTG Quantile function |
| qtailw | Quantile function |
| rFTG | FTG Random Sample Generation |
| rtailw | TailW Random Sample Generation |