[R] Where is the stud.ci() function used in boot.ci()?

From: Christopher R. Bilder <cbilder_at_earthlink.net>
Date: Sun 08 Jan 2006 - 08:12:16 EST


Hello!  

I am trying to duplicate the studentized bootstrap confidence interval calculations in boot.ci() without using boot.ci(). My w/o boot.ci() calculations are close to boot.ci() using the same object from implementation of boot(), but not quite the same (I think the differences are due to how quantiles are computed for z*). Through examining the boot.ci() code, I can see there is a call out to a function called stud.ci(). Obviously, examining this function would be very helpful to see how the calculations are truly done! So, I am trying to find the actual function code for the stud.ci() function. Sorry if this is a simple question, but does anyone know how this function code can be seen? Unfortunately, this function can not be seen in R through simply typing its name at the command prompt and there is no help entry for it. Also, there is no obvious file name in boot_1.2-24.zip at http://cran.r-project.org/src/contrib/Descriptions/boot.html for the specific function.  

Thank you in advance!  

Chris Bilder    

University of Nebraska-Lincoln
Department of Statistics
Lincoln, NE 68583
E-mail: cbilder3@unl.edu or chris@chrisbilder.com Website: www.chrisbilder.com  

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