| fit_splitpop_gamma | Fit a split-population gamma survival model |
| fit_splitpop_ggamma | Fit a split-population generalized gamma survival model |
| fit_splitpop_loglogistic | Fit a split-population log-logistic survival model |
| fit_splitpop_lognormal | Fit a split-population log-normal survival model |
| fit_splitpop_weibull | Fit a split-population Weibull survival model |
| loglik_splitpop_gamma | Log-likelihood: split-population gamma model |
| loglik_splitpop_ggamma | Log-likelihood: split-population generalized gamma model |
| loglik_splitpop_loglogistic | Log-likelihood: split-population log-logistic model |
| loglik_splitpop_lognormal | Log-likelihood: split-population log-normal model |
| loglik_splitpop_weibull | Log-likelihood: split-population Weibull model |