Gets the boundaries for a survival fit
prGetFpDataFromSurvivalFit(fit, conf.int = 0.95, exp = TRUE)
A matrix with the columns:
The estimated coefficient
P-value
The lower confidence interval
The upper confidence interval
A column that later can be used in ordering
A survival model of either competing risk regression or cox regression type
The interval of interest 0-1, see levels in confint()
If the value should be in exponential form (default)