## S3 method for class 'stdCoxph'summary(object, t, CI.type ="plain", CI.level =0.95, transform =NULL, contrast =NULL, reference =NULL,...)
Arguments
object: an object of class "stdCoxph".
t: numeric, indicating the times at which to summarize. It defaults to the specified value(s) of the argument t in the stdCox function.
CI.type: string, indicating the type of confidence intervals. Either "plain", which gives untransformed intervals, or "log", which gives log-transformed intervals.
CI.level: desired coverage probability of confidence intervals, on decimal form.
transform: a string. If set to "log", "logit", or "odds", the standardized survival function θ(t,x) is transformed into ψ(t,x)=log{θ(t,x)}, ψ(t,x)=log[θ(t,x)/{1−θ(t,x)}], or ψ(t,x)=θ(t,x)/{1−θ(t,x)}, respectively. If left unspecified, ψ(t,x)=θ(t,x).
contrast: a string. If set to "difference" or "ratio", then ψ(t,x)−ψ(t,x0)
or ψ(t,x)/ψ(t,x0) are constructed, where x0 is a reference level specified by the reference argument.
reference: must be specified if contrast is specified.