# Bayesian Flexible Parametric Survival Modelling and Extrapolation

## Documentation for package ‘survextrap’ version 1.0.1

- DESCRIPTION file.
- User guides, package vignettes and other documentation.
- Package NEWS.

## Help Pages

survextrap-package | The 'survextrap' package.
cetux | Datasets for evaluation of cetuximab in head and neck cancer
cetux_bh | Datasets for evaluation of cetuximab in head and neck cancer
cetux_seer | Datasets for evaluation of cetuximab in head and neck cancer
colons | Colon cancer survival data
cumhaz | Estimates of cumulative hazard from a survextrap model
curedata | Simulated data for testing mixture cure models
dsurvmspline | M-spline survival distribution
dsurvmspline_wane | M-spline survival distribution under treatment effect waning
get_draws | Posterior draws from a survextrap model
hazard | Estimates of hazard from a 'survextrap' model
hazard_ratio | Hazard ratio against time in a survextrap model
hrtime | Hazard ratio between high and low values of the hazard over time
Hsurvmspline | M-spline survival distribution
hsurvmspline | M-spline survival distribution
Hsurvmspline_wane | M-spline survival distribution under treatment effect waning
hsurvmspline_wane | M-spline survival distribution under treatment effect waning
irmst | Incremental restricted mean survival time
mean.survextrap | Mean survival time
mean_survmspline | M-spline survival distribution
mean_survmspline_wane | M-spline survival distribution under treatment effect waning
msplinemodel_init | Create an M-spline survival model, both structure and parameters.
mspline_basis | Evaluate an M-spline basis matrix at the specified times.
mspline_constant_coefs | Determine M-spline basis coefficients which give a constant function.
mspline_init | Create a default M-spline model structure
mspline_list_init | Validate an M-spline object supplied as a list, choosing defaults if needed.
mspline_plotdata | Data for plotting an M-spline function, showing how it is built up from its basis
mspline_plotsetup | Get basis for an illustration of an M-spline with given knots.
mspline_spec | Make default M-spline knot specification given a survival dataset.
plot.survextrap | Plot method for survextrap model objects
plot_hazard | Plot hazard curves from a survextrap model
plot_hazard_ratio | Plot hazard ratio against time from a survextrap model
plot_mspline | Plot a M-spline function, showing how it is built up from its basis
plot_prior_hazard | Generate and/or plot a sample from the prior distribution of M-spline hazard curves
plot_survival | Plot survival curves from a survextrap model
print.survextrap | Print a fitted survextrap model
print_priors | Print the priors used in a fitted survextrap model
priors | Prior distributions and options
prior_haz | Determine priors for time-varying hazards and hazard ratios
prior_haz_const | Summarises the prior for the constant hazard implied by a particular prior on the hazard scale parameter and spline specification.
prior_haz_sd | Determine priors for time-varying hazards and hazard ratios
prior_hr | Summarises the prior for the hazard ratio implied by a particular prior on the log hazard ratio
prior_hr_sd | Determine priors for time-varying hazards and hazard ratios
prior_pred | Simulate a dataset from the prior predictive distribution of survival times in an M-spline survival model.
prior_sample | Sample from the joint prior of parameters in a survextrap model
prior_sample_hazard | Generate and/or plot a sample from the prior distribution of M-spline hazard curves
psurvmspline | M-spline survival distribution
psurvmspline_wane | M-spline survival distribution under treatment effect waning
p_beta | Prior distributions and options
p_gamma | Prior distributions and options
p_hr | Derive a normal prior for the log hazard ratio parameter based on a guess at the hazard ratio
p_meansurv | Derive a normal prior for the log hazard scale parameter based on a guess at survival times
p_normal | Prior distributions and options
p_t | Prior distributions and options
qsurvmspline | M-spline survival distribution
qsurvmspline_wane | M-spline survival distribution under treatment effect waning
rmst | Restricted mean survival time
rmst_survmspline | M-spline survival distribution
rmst_survmspline_wane | M-spline survival distribution under treatment effect waning
rsurvmspline | M-spline survival distribution
rsurvmspline_wane | M-spline survival distribution under treatment effect waning
standardise_to | Constructor for a standardising population used for survextrap outputs
standardize_to | Constructor for a standardising population used for survextrap outputs
summary.survextrap | Posterior summary statistics for parameters of survextrap models
survextrap | Flexible Bayesian parametric survival models
survival | Estimates of survival from a 'survextrap' model
Survmspline | M-spline survival distribution
Survmspline_wane | M-spline survival distribution under treatment effect waning