[R] Using boot.ci to find lower confident bound

Prof Brian Ripley ripley at stats.ox.ac.uk
Mon Feb 5 08:19:12 CET 2007

I think the question was 'how do I get one-sided confidence limits from 
package boot?'   As far as I know you would have to rewrite the code to do 
so, and this looks pretty simple.

Simon is right to point out that you need to understand the methods: some 
of these methods are much worse for one-sided limits, especially the 
so-called 'basic' method.

On Mon, 5 Feb 2007, Simon Blomberg wrote:

> Start by reading the references in ?boot.ci, to understand the different
> methods. Then you pays your money and you takes your choice. (Hint: R is
> free.)
> Cheers,
> Simon.
> Nguyen Manh The wrote:
>> Dear R-users,
>> I am trying to find lower confident bound (one side
>> CI) for a variable of interest using "boot.ci" command
>> in bootstrap method. In the boot.ci, it provides 5
>> methods for finding CI (two-side CI). Anyone can help
>> me with that? Or any suggestions? Do I have to use a
>> different commands?
>> Many thanks,
>> The
>> Nguyen Manh The
>> Department of Statistics
>> University of Glasgow
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Brian D. Ripley,                  ripley at stats.ox.ac.uk
Professor of Applied Statistics,  http://www.stats.ox.ac.uk/~ripley/
University of Oxford,             Tel:  +44 1865 272861 (self)
1 South Parks Road,                     +44 1865 272866 (PA)
Oxford OX1 3TG, UK                Fax:  +44 1865 272595

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