exponential object.Method to obtain the cdf of an exponential object.
# S3 method for exponential
surv(x, ...)A function that computes the cdf of the exponential. Accepts as
input a vector t at which to compute the cdf, an input rate
denoting the failure rate of the exponential distribution, and a
logical log indicating whether to compute the log of the cdf.
By default, rate is the failure rate of object x.
The object to obtain the pdf of
Additional arguments (not used)