Variance-covariance matrix from a flexsurvreg model
# S3 method for flexsurvreg
vcov(object, ...)Variance-covariance matrix of the estimated parameters, on the scale that they were estimated on (for positive parameters this is the log scale).
A fitted model object of class
flexsurvreg, e.g. as returned by
flexsurvreg or flexsurvspline.
Other arguments (currently unused).