boot and coefficients
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 <http://www.socsci.mcmaster.ca/jfox/Books/Companion/appendix.html>. I hope that this answers your questions. John
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? cheers andrew ---------------------------------------------------------- Dr. Andrew Beckerman Institute of Biological Science University of Stirling Stirling FK9 4LA +44 (0)1786 then wk-467808 fx-464994 (APB is not responsible for anything below this) -- The University of Stirling is a university established in Scotland by charter at Stirling, FK9 4LA. Privileged/Confidential Information may be contained in this message. If you are not the addressee indicated in this message (or responsible for delivery of the message to such person), you may not disclose, copy or deliver this message to anyone and any action taken or omitted to be taken in reliance on it, is prohibited and may be unlawful. In such case, you should destroy this message and kindly notify the sender by reply email. Please advise immediately if you or your employer do not consent to Internet email for messages of this kind. Opinions, conclusions and other information in this message that do not relate to the official business of the University of Stirling shall be understood as neither given nor endorsed by it. -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- r-help mailing list -- Read http://www.ci.tuwien.ac.at/~hornik/R/R-FAQ.html Send "info", "help", or "[un]subscribe" (in the "body", not the subject !) To: r-help-request at stat.math.ethz.ch _._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._
____________________________ John Fox Department of Sociology McMaster University email: jfox at mcmaster.ca web: http://www.socsci.mcmaster.ca/jfox ____________________________ -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- r-help mailing list -- Read http://www.ci.tuwien.ac.at/~hornik/R/R-FAQ.html Send "info", "help", or "[un]subscribe" (in the "body", not the subject !) To: r-help-request at stat.math.ethz.ch _._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._