[R] Predicting classification error from rpart

2005-10-14 Thread Anthony Staines
ideas? Thanks, Anthony Staines -- Dr. Anthony Staines, Senior Lecturer in Epidemiology. School of Public Health and Population Sciences, UCD, Earlsfort Terrace, Dublin 2, Ireland. Tel:- +353 1 716 7345. Fax:- +353 1 716 7407 Mobile:- +353 86 606 9713 Web:- http://phm.ucd.ie

[R] Fwd: Classification error rate increased by bagging - any ideas?

2006-07-19 Thread Anthony Staines
poorly), but has an overall error rate (just over 30%) higher than either of the rpart models (about 25%). My instinct is to go for the bagging results, as they seem more reasonable, but my colleagues really like the lower overall error rate. Any thoughts? Ta, Anthony Staines-- Dr. Anthony Staines

[R] Classification error rate increased by bagging - any ideas?

2006-07-19 Thread Anthony Staines
poorly), but has an overall error rate (just over 30%) higher than either of the rpart models (about 25%). My instinct is to go for the bagging results, as they seem more reasonable, but my colleagues really like the lower overall error rate. Any thoughts? Ta, Anthony Staines -- Dr. Anthony Staines

[R] Problem with Trellis graphics in nlme

2003-11-20 Thread anthony staines
. If it helps, I can e-mail the offending images to you individually on request. Anthony Staines, Public Health, UCD __ [EMAIL PROTECTED] mailing list https://www.stat.math.ethz.ch/mailman/listinfo/r-help

[R] Using variable names in for loops - Generating plots semi-automatically from a series of variables Partly solved

2007-02-09 Thread Anthony Staines
(Diseases[i],.jpg)) plot(data[Male][[1]]~data$Age,type='b') lines(data[Female][[i]]~data$Age,type='b') dev.off() } -- Is this the R way to do it, or am I missing something more basic? Anthony Staines P.S. Using R 2.4.1 on Linux -- Dr. Anthony Staines, Senior Lecturer in Epidemiology. ***Note New

[R] SPSS and library(foreign)

2007-02-15 Thread Anthony Staines
the format either on the SPSS site, or on the PSPP site. We have earlier versions of SPSS around, so we re-install one and we could re-write it if that would help. Anthony Staines -- -- Dr. Anthony Staines, Senior Lecturer in Epidemiology. ***Note New Address *** Note New Address School