similar to: BIC vz SBIC vz SIC

Dears, anyone has experiences with text mining and R? I'll be very greatfull for tutorial or examples. Thanks -- Daniele Medri - http://www.medri.org

Dear R.Users, using ctree() (from "party" library) on a data.frame, I want to append a column with the references for the groups/segments detected. While these nodes are easy readable in output, I need a vector for my obs. Hints? Cheers -- Daniele Medri

Hi all, I need to create a data.frame from a variable number of vectors. The number of these vectors could change so I need a dinamic way to group all in a data.frame. The number is length(abc). e.g. vectors in my workspace N1 <-c(1,2,3,4) N2 <-c(1,2,3,4) N3 <-c(1,2,3,4) abc <-c(1,2,3) the data.frame I want to create: tcm <-data.frame(OneVector, TwoVector,

Dear R-helpers, I just search if is there something for AID and CHAID in R: one message in this list (last year) without success and no possibility. News about? If "no" let's me know because some friends are looking for thesis and this could be a usefull job. bye -- Daniele Medri

Dears, I am selecting configure-options for Data Mining applications with R, notes that guide a user from SVN repository to system compilation on GNU/Linux system ("gcc" as compiler). Status: * My system specs: - processor Intel 2.8Ghz HT - kernel Linux 2.6.10-5-686-smp - ram 1500 Mbyte * Dataset to use: - ~900 Mbyte of text file * R from svn repository (daily updated) *

I don't know if this is the right forum, but I'd like to ask an open-ended question about the goals of the S7 OOP system, which is, where do we see the ultimate future of object-oriented programming in R being? Do we see S7 eventually complementing S3 and S4 in "base" (in quotes because S4 is provided by the methods package), or do we see (or even wish?) for S7 to supplant both

Hi! In [1] it's written that "Then a generic configuration file /etc/vz/vznetctl.conf must be created containing [...]" whereas it has to be /etc/vz/vznet.conf since /usr/sbin/vznetcfg script has the following line VZNETCFG='/etc/vz/vznet.conf' vzctl version is 3.0.26-1. Best regards, Nikolay. [1] http://libvirt.org/drvopenvz.html

Hello, I am very new in R so I am so sorry for this question. I have the Barro-Lee data set which contains 98 countries and I want to run the regressions only for the Latin America countries, so what do you recomend? How can I delete all the other countries or how can I select the countries of Lat. Am. thank you this is the list of countries SHCODE COUNTRY NAME WBCTRY

>From some random dude on Slashdot [ http://yro.slashdot.org/comments.pl?sid=224420&cid=18177356 ]: "Second, whether AVI is better or worse than Ogg is debatable. Any who has ever written an Ogg (de)muxer curses it's name frequently. It's extremely codec-specific, and the format is rather loosely defined, with no consistent standard way to do much of anything.... AVI has

>From some random dude on Slashdot [ http://yro.slashdot.org/comments.pl?sid=224420&cid=18177356 ]: "Second, whether AVI is better or worse than Ogg is debatable. Any who has ever written an Ogg (de)muxer curses it's name frequently. It's extremely codec-specific, and the format is rather loosely defined, with no consistent standard way to do much of anything.... AVI has

I have encountered a problem reading SAS transport files on both a Mac (OS X) and Linux (RedHat 9), both using R2.0.1. After loading "foreign", the command: read.xport("V1622101_050304.xpt") yields: Error in lookup.xport(file) : File not in SAS transfer format In Linux, I can "cat" the file. The first few lines are: **COMPRESSED** **COMPRESSED** **COMPRESSED**

Hello LLVMDev, I'm George, an intern for Google who will be working on LLVM. Currently, I'm starting to implement a set-based Alias Analysis algorithm for LLVM, which looks like it may be more accurate than Steensgard's, and can be constructed in approximately nlog(n) time and linear space (n = number of memory locations; queries happen in constant time). It will most likely be

Hi everyone. There's been several threads on baseline hazard in Cox model but I think they were all on cumulative baseline hazard, for instance http://tolstoy.newcastle.edu.au/R/help/01a/0464.html http://tolstoy.newcastle.edu.au/R/help/01a/0436.html "basehaz" in package survival seems to do a cumulative hazard. extract from the basehaz function: sfit <- survfit(fit) H

Hi all, I would like to know how the BIC criterion is calculated for models estimated using gls( ) function. I read in Pinheiro & Bates (2000) p84 that BIC = -2logL + npar*log(N) (for the ML method), or BIC = -2logLR + npar*log(N-p) (for the REML method) but when I use any of these formulae I don't obtain the result given by R. Thanks in advance for any help. Eve CORDA Office national

Hi, I'm actually trying to rank a set of candidate models with an information criterion (AICc, QIC, BIC). The problem I have is that I use mixed-effect cox regression only available with the package {coxme} (see the example below). #Model1 >spring.cox <- coxme (Surv(start, stop, Real_rand) ~ strata(Paired)+R4+R3+R2+(R3|Individual), spring) I've already found some explications in

Dear R-helpers, I'm considering two methods of selecting a poisson regression model within R: 1. Using the step() function (stats package) to find the best model by a stepwise algorithm and AIC 2. Using the bic.glm() function (BMA package) to find the best model by Bayesian Model Averaging and BIC Are these both reasonable methods for model selection or is one clearly more appropriate than

Hello, I am working on getting optimal lags by using BIC, But I don't know how to calculate BIC. Is there any code or useful function for it? Thanks and regards, Dan Zhao

Dear all, is there a function similar to extractAIC based on which I can extract the BIC (Bayesian Information Criterion) of a coxph model? I found some functions that provide BIC in other packages, but none of them seems to work with coxph. Thanks, Michael [[alternative HTML version deleted]]

Is AIC or BIC available when using the nnet package? Thank you Paul Green

I have been contacted by a researcher who would like to use the bic.logit function (http://lib.stat.cmu.edu/S/bic.logit) for S-PLUS which applies Bayesian Model Averaging to variable selection for logistic regression. I can see that the S-PLUS function uses a call to a Fortran "leaps" function, which does not seem to be available in R. Has this method or a similar method been ported to