similar to: Step procedure and Akaike information criterion

Dear All, I'm trying to maximize a likelihood with respect one parameter using "optimize" on simulated data (without error component). I've iterated the maximization procedure 1000 times and I should always obtain the same estimate of the parameter (equal to the simulated one) but, instead, i obtain different results (the likelihood function shouldn't be flat). Does

I have a matrix 2900X2900 and I have to solve it. But R says that it can't allocate 67899kb. How can I do? Appreciate your kindly help! Salvati Nicola Dipartimento di Statistica "G.Parenti" salvati@ds.unifi.it tel. 055.4237.224 fax 055.4223560 [[alternative HTML version deleted]]

Dear R users (r-help@r-project.org), The definition of AIC (Akaike information criterion) for normal error models has just been changed. Please refer to the paper below on this matter. Eq.(22) is the new definition. The essential part is RSS(n+q+1)/(n-q-3); it is close to GCV. The paper is temporarily available at the "Papers In Press" place. Kunio Takezawa(2012): A Revision of

Hello, I have a price field that I validate of numbers. How can I default a 0.0 value? Regards, Frank Rocco farocco-PkbjNfxxIARBDgjK7y7TUQ@public.gmane.org

Hello, I just installed radrails and it will not run the webbrick because a version is already running on my mac. I do not know how to shut down the mac version. Thanks Regards, Frank Rocco farocco-H+0wwilmMs3R7s880joybQ@public.gmane.org

Last login: Fri Dec 30 15:34:43 on ttyp1 source /private/var/tmp/folders.501/TemporaryItems/Locomotive. 1135999534.992790-16807 Welcome to Darwin! frank-roccos-powerbook58:~ farocco$ source /private/var/tmp/folders. 501/TemporaryItems/Locomotive.1135999534.992790-16807 frank-roccos-powerbook58:~/Documents/receipts farocco$ script/ generate scaffold receipt receipt

Hello all, i hope you don't mind my off topic question. i want to use the Akaike criterion for variable selection in a regression model. Does anyone know some basic literature about that topic? Especially I'm interested in answers to the following questions: 1. Has (and if so how has) the criterion to be modified, if i estimate the transformations of the variables too? 2. How is the

Dear R users since R 2.6.0 when I try to save a graph from the Rgraphic device I find that the system becomes so slow that I'm forced to kill the process. This usually does not happen at the beginning of the session. The problem seems to arise when the system opens the dialog window to choose the directory and file name. (R version 2.6.1 under Windows XP) Thank you all Giovanni --

Hello, I did a script/plugin discover then script/plugin engine then script/plugin login_engine The discover worked, but I get engine and login_engine not found. I am using a Mac Thanks Frank

Dear all, does anyone have r code to perform model-averaging of regression parameters by Akaike weights, and/or to do all-possible-subsets lm modelling that reports parameter estimates, AICc and number of parameters for each model? I have been looking for these in the archive but found none. (I am aware that many of you would warn me against these methods advocated by Burnham and Anderson

I am using lm simulation in R and try to find the AICc and Akaike weight of the model. I searched out that using package "AICcmodavg" AICc is easily to get. I wonder how can I get the "Akaike weight", any function I can use to generate it? Thanks in advance. Sunny [[alternative HTML version deleted]]

Odette > Wondering how can I generate "Akaike weight" with R? I know the description, > but is there any function to generate by R on the web-site or R library? > I am using GLM or GLMM (family=binomial), so would be appreciated if you > help me. You could have a look at this. http://bm2.genes.nig.ac.jp/RGM2/R_current/library/aod/man/summary.aic.html Which is in the OAD

Hello, I did a fresh install of ruby182 and gem rails --include-dependencies Now when I do: rails receipts cd receipts ruby script\generate scaffold receipt receipt rails does not create the views or controller. What can I do? Thanks Frank

Hello, What installs do you recommend for Windows XP and MAc OSX 10.4? I want to setup Rails as easy as I can. Thanks Frank -- Posted via http://www.ruby-forum.com/.

Hi all, I have an odd problem concerning passwords. The same results i both 3.0.10 and 3.0.20. I want to lockout user after they used the wrong passwd 3 times. I'll use: pdbedit -P "bad lockout attempt" -C 3 It does not stick? The user can keep trying forever. If I use -C 1, it works - any other number fails. pdbedit -Lv does not count bad password at all. The Samba-box is

Dear contributors I have tried this experiment: x<-c() for (i in 1:12){ x[i]<-list(cbind(x1[i],x2[i])) #this is a list of 12 couples of time series I am using to perform a test } # that compares them 2 by 2 # ################# #trace statistic test<-data.frame() cval<-array( , dim=c(2,3,12)) for (i in 2:12){ for (k in 1:2){ for (j in 1:3){ result[k,j,i]<-

Hello, I have a Mac & PC and want to install these plug-ins. I do not understand the svn, what commands do I use? Thanks Frank

Dear R users, today I've got the following problem. Here you are a dataframe as example. There are some SAMPLES for which a CONCentration was recorded through TIME. The time during which the concentration was recorded is not always the same, 10 points for Sample A, 7 points for Sample B and 11 for sample C Also the initial concentration was not the same for the three samples. I would like

A question, althought it is not strictly samba pertinent: I have some Win2k server that offers dial-in to local users. Today all stopped working, but the ones using linux ... However these are not sufficient, so i ask here [since it is probable many people have win2k hosts around) - how to , logging in the win2k server with ssh, restart RAS ? Of couse i can use only CLI programs ... at woest ...

Dear R-users, consider the two following outputs, ## 1 and ## 2 \begin{Scode}{Setup, echo = FALSE, print = FALSE, eval = TRUE} with(expand.grid(Fact1 = 1:3, Fact2 = 1:40), table(Fact1, Fact2)) ## 1 xtable(with(expand.grid(Fact1 = 1:3, Fact2 = 1:40), table(Fact1, Fact2))) ## 2 \end{Scode} The first line with(expand.grid(Fact1 = 1:3, Fact2 = 1:40), table(Fact1, Fact2))