Enhancements

[lbelzile]

• [ ] Better support for interval censored data; these can appear in Q-Q plots as segments.
• [ ] Correct calculation of the restricted mean for interval censored data, add variance (using the hazard from the EM algorithm?)
• [ ] Add gamma-Gompertz model.
• [ ] Fix errors when passing partial arguments to functions (make a MWE).
• [ ] Add simultaneous confidence intervals for plots (https://github.com/TeemuSailynoja/simultaneous-confidence-bands)
• [x] Allow for Q-Q plots for truncated data that have the regular plotting positions
• [ ] Optimization in Rsolnp sometimes hang; add a wrapper to prevent infinite timing.

[lbelzile]

Interval censored data: we can display intervals, but there is no obvious ranking for the $x$-axis on a quantile-quantile plot. One could use the most likely or reported value and then add intervals; Varty does something like this, in addition to his tolerance intervals.