[R] Extracting components from a 'boot' class output in R

Weidong Gu anopheles123 at gmail.com
Fri Jul 22 21:42:18 CEST 2011


Sarath,

Maybe someone can show a direct access to the statistic. One way to
get around is to access 't' component of the boot object which
contains individual estimates. so you can extract standard error by

sqrt(var(bootObj$t))

Weidong Gu

On Fri, Jul 22, 2011 at 11:36 AM, Sarath Gamini Banneheka
<banneheka at yahoo.com> wrote:
> Dear R user,
>
> I used the following to do a bootstrap.
>
>
>>bootObj<-boot(data=DAT, statistic=Lp.est,
> R=1000,x0=3)
>
> I have the following output from the above bootstrap. How
> can I extract  components of the output.
> For example, how can I extract the std.error?
>
>
>> bootObj
>
> ORDINARY NONPARAMETRIC BOOTSTRAP
>
> Call:
> boot(data = DAT, statistic = Lp.est, R = 1000, x0 = 3)
>
> Bootstrap Statistics :
>       original        bias              std. error
> t1*  794.9745 -0.6666341    4.042099
>
> Any help is greatly appreciated.
>
> Thank you
>
>
> Sarath Banneheka
>
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>
>
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