[R] bootstrap vs. resampleing

[Roger D. Peng]

What you're describing sounds like subsampling, about which John 
Hartigan has written a few papers.

-roger

array chip wrote:
> Hi,
> 
> I understand bootstrap can be used to estimate 95%
> confidence interval for some statistics, e.g.
> variance, median, etc. I have someone suggesting that
> by resampling certain proportion of the total samples
> (e.g. 80%) without replacement, we can also get the
> estimate of confidence intervals. Here we have an
> example of 1000 obsevations, we would like to estimate
> 95% confidence intervals for odds ratio for a
> diagnostic test, can I use resampling 80% of the
> observations without replacement, instead of
> bootstrap, to do this? If not, why is it wrong to do
> it this way?
> 
> Thanks
> 
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