Generate hazard ratio with prediction intervals from parametric bootstrap simulation
calc_hr_pi(
sim,
trt,
group = NULL,
pi.range = 0.95,
calc.obs = TRUE,
trt.assign = c("default", "reverse")
)
A survparamsim
class object generated by surv_param_sim()
function.
A string to specify which column define treatment status to calculate HR.
Optional string(s) to specify grouping variable(s).
You will have faceted histograms for these variables in plot_hr_pi()
function.
Prediction interval for simulated HR.
A logical to specify whether to calculate HR for the observed data.
Need be set as FALSE if survival information in the newdata
is dummy.
Specify which of the categories of trt
need to be considered as control group.
See details below if you have more than two categories.
If your trt
has more than two categories/levels and want to specify which one to use as a
reference group, you can convert the column into a factor in the newdata
input for
surv_param_sim()
. The first level will be used as a reference group.