twosamp.object: Two-sample Confidence Interval Object

In bpcp: Beta Product Confidence Procedure for Right Censored Data

Two-sample Confidence Interval Object

Description

The twosamp class is returned by the functions bpcp2samp or delta2samp. The class represents the comparison of two survival curves at each observed event time.

Unlike the htest class, which compares curves at specified testtimes, the twosamp class compares curves at all observed event times.

Objects of this class has methods for the functions summary and plot.

Value

L	left endpoint of interval
Lin	logical vector, include left endpoint?
R	right endpoint of interval
Rin	logical vector, include right endpoint?
interval	interval of survival and confidence interval as determined by L, Lin, R, Rin
g1	name of group 1 as determined by group
est_group1	one-sample survival estimate for group 1 in interval/at time point
lower_group1	one-sample lower pointwise confidence limit for group 1 in interval/at time point
upper_group1	one-sample upper pointwise confidence limit for group 1 in interval/at time point
g2	name of group 2 as determined by group
est_group2	one-sample survival estimate for group 2 in interval/at time point
lower_group2	one-sample lower pointwise confidence limit for group 2 in interval/at time point
upper_group2	one-sample upper pointwise confidence limit for group 2 in interval/at time point
beta	estimate of parameter determined by parmtype (see note)
lower	the lower limit of the confidence interval for the parameter determined by parmtype
upper	the upper limit of the confidence interval for the parameter determined by parmtype
conf.level	confidence level
p.value	p-value for the test
null.value	the specificed null hypothesized value of the parameter determined by parmtype
alternative	type of alternative with respect to the null.value, either 'two.sided', 'greater' or 'less'
method	a character string describing the test

Structure

The following components must be included in a legitimate twosamp object. structure(list(L=L, Lin=Lin, R=R, Rin=Rin, interval=interval, g1=g1,est_group1 = est_g1, lower_group1=lower_g1, upper_group1=upper_g1, g2=g2,est_group2 = est_g2, lower_group2=lower_g2, upper_group2=upper_g2, beta = beta, lower = lower, upper = upper, conf.level = conf.level, p.value = p.value, null.value = nullparm, alternative = alt, method = full.method), class = c("twosamp","list"))

See Also

plot.twosamp, summary.twosamp create.twosamp

bpcp documentation built on July 21, 2026, 5:08 p.m.