boot (version 1.1-3)

bootci.object: Bootstrap Confidence Interval Objects

Description

Class of objects that result from calculating confidence intervals from an object of class "boot".

Arguments

GENERATION

This class of objects is returned from calls to the function boot.ci,

METHODS

The class "bootci" has methods for print.

STRUCTURE

Objects of class "bootci" are implemented as a list with the following components.

R{ The number of bootstrap replicates on which the intervals were based. } t0{ The observed value of the statistic on the same scale as the intervals. } 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.

} 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. } basic{ The intervals calculated using the basic bootstrap method. } student{ The intervals calculated using the studentized bootstrap method. } percent{ The intervals calculated using the bootstrap percentile method. } 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 }

See Also

boot.ci, print.bootci