[R] boot and coefficients

John Fox jfox at mcmaster.ca
Wed Nov 20 16:26:59 CET 2002

Dear Andrew,

My R and S-PLUS Companion has an on-line appendix on bootstrapping 
regression models that might be of help. You can find it (and other 
appendices) at 

I hope that this answers your questions.

At 02:17 PM 11/20/2002 +0000, Andrew Beckerman wrote:
>R1.61, WinNT
>Dear listers - I am trying to implement the SPLUS example for boostrapping 
>coefficients from a linear model -
>boot(data.frame, coef(eval(model$call)))
>I get errors saying that my statistic is not defined and that the 
>replicates are not defined.  Changing this to -
>boot(recTTM, statisitic=coef(eval(mod$call)),R=999)
>still gives the error about the statistic.  Clearly I do not understand 
>what the statisitic is and how to make the coefficients a function as in 
>the examples in the help... can someone guide me on syntax?
>Dr. Andrew Beckerman
>Institute of Biological Science
>University of Stirling
>Stirling FK9 4LA
>+44 (0)1786 then wk-467808 fx-464994
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John Fox
Department of Sociology
McMaster University
email: jfox at mcmaster.ca
web: http://www.socsci.mcmaster.ca/jfox

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