| Aug.R.s.surv.estimate | Calculates the augmented estimator of the proportion of treatment effect explained by the surrogate marker information measured at a specified time and primary outcome information up to that specified time | 
| delta.estimate | Calculates treatment effect | 
| delta.multiple.surv | Calculates robust residual treatment effect accounting for multiple surrogate markers at a specified time and primary outcome information up to that specified time | 
| delta.s.estimate | Calculates model-based or robust residual treatment effect | 
| delta.s.surv.estimate | Calculates robust residual treatment effect accounting for surrogate marker information measured at a specified time and primary outcome information up to that specified time | 
| delta.surv.estimate | Calculates treatment effect in a survival setting | 
| delta.t.surv.estimate | Calculates robust residual treatment effect accounting only for primary outcome information up to a specified time | 
| d_example | Hypothetical data | 
| d_example_me | Hypothetical data with replicate measurements | 
| d_example_multiple | Hypothetical survival data with multiple surrogate markers | 
| d_example_surv | Hypothetical survival data | 
| fieller.ci | Constructs Fieller's confidence interval. | 
| me.variance.estimate | Estimates measurement error variance given replicate data. | 
| R.multiple.surv | Calculates the proportion of treatment effect explained by multiple surrogate markers measured at a specified time and primary outcome information up to that specified time | 
| R.s.estimate | Calculates the proportion of treatment effect explained | 
| R.s.estimate.me | Calculates the proportion of treatment effect explained correcting for measurement error in the surrogate marker | 
| R.s.surv.estimate | Calculates the proportion of treatment effect explained by the surrogate marker information measured at a specified time and primary outcome information up to that specified time | 
| R.t.surv.estimate | Calculates the proportion of treatment effect explained by the primary outcome information up to a specified time |