| ROMIplot-package | Plots Surfaces of Rates of Mortality Improvement |
| create.Lexis.matrix | Creates a Lexis surface matrix. |
| readHMDformat | A function to read data from the Human Mortality Database ("HMD") |
| ROMI.plot | Creates a Lexis Surface Map of Rates of Mortality Improvement |
| ROMIplot | Plots Surfaces of Rates of Mortality Improvement |