bootci.object {boot} | R Documentation |
Class of objects that result from calculating confidence intervals from
an object of class "boot"
.
This class of objects is returned from calls to the function boot.ci
,
The class "bootci"
has methods for print
.
Objects of class "bootci"
are implemented as a list with the following
components.
item{R}{
The number of bootstrap replicates on which the intervals were based.
}
item{t0}{
The observed value of the statistic on the same scale as the intervals.
}
item{call}{
The call to boot.ci
which generated the object
It will also contain one or more of the following components depending
on the value of type
used in the call to bootci
.
} item{normal}{ A matrix of intervals calculated using the normal approximation. It will have 3 columns, the first being the level and the other two being the upper and lower endpoints of the intervals. } item{basic}{ The intervals calculated using the basic bootstrap method. } item{student}{ The intervals calculated using the studentized bootstrap method. } item{percent}{ The intervals calculated using the bootstrap percentile method. } item{bca}{ The intervals calculated using the adjusted bootstrap percentile (BCa) method.
These latter four components will be matrices with 5 columns, the first column containing the level, the next two containing the indices of the order statistics used in the calculations and the final two the calculated endpoints themselves }