[R] Extracting components from a 'boot' class output in R
timhesterberg at gmail.com
Mon Jul 25 07:11:18 CEST 2011
Sarath pointed out (privately) that the standard error is not actually
stored as part of the bootstrap object.
Instead, it is calculated on the fly when you print the bootstrap object;
this is done by
Similarly for bias.
(The 'boot:::' is necessary because
"'print.boot' is not an exported object from 'namespace:boot'").
>to find out what the components are, and use $ or [[ to extract
>for a description of components of the object (look in the Value section).
>That is general advice in R, applying to all kinds of objects -
>boot, and many other functions such as lm(), return lists with
>a class added, and you can operate on the object as a list using
>names(), $, etc.
>>Dear R user,
>>I used the following to do a bootstrap.
>>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?
>>ORDINARY NONPARAMETRIC BOOTSTRAP
>>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.
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