search for: ariabl

Hi, I've a question about the RandomForest package. The package allows the extraction of a variable importance measure. As far as I could see from the documentation, the computation is based on the Gini index. Do you know if this extraction can be also based on other criteria? In particular, I'm interested in the info gain criterion. Best regards, Chris --

Hi all, I have searched for a long time to find out R program about V ariable S election for GLMM (Generalized Linear Mixed Model). I saw several great R packages for V ariable S election. I  also found several R packages for GLMM. But, I did not find yet R package about V ariable S election for GLMM even though sevel  papers about it have been published.   In fact,...

Hi R-masters! I have a problem and need your help. I have 9 discrete variables with 2 levels each. In exploratory analisys I generate one matrix with chi-square for tables with 2 ariables each with this script setwd("F:/") dados<-read.csv("log.csv")[,2:10] dados.x<-matrix(NA,ncol=9,nrow=9) for(i in 1:8){ for(j in (i+1):9){ tab<-table(dados[,i]...

Hi all, I would like to transform to long format a matrix which has only information about individuals and a value for each individual. I would like to have it in ling format with more information related to groups, so ell values and individuals are repeated for each group. Let me show the example: matrix in wide format: Individuals Value A 3 B 4 C 5 D 2 And long format would

...fix initial copy-paste issues add a "system" property to SwfdecPlayer that holds the player fix copyrights add infrastructure for System.capabilities.Query add swfdec_as_string_escape() function implement System.capabilities.Query() print the value the variable will be set to initialize $version variable if redoing an .as file, regenerate the corresponding .h file update test to test more things allow this thing to be run without numbers - makes Number ("hi") work allow this thing to be run without booleans - makes...

...managing the list at r-help-owner at r-project.org When replying, please edit your Subject line so it is more specific than "Re: Contents of R-help digest..." Today's Topics: 1. Re: GAMSetup (Simon Wood) 2. Hazard plot (Laura Bonnett) 3. Re: histogram-like plot with two variables (Duncan Murdoch) 4. Re: histogram-like plot with two variables (Jim Lemon) 5. Re: problem running Sweave as a web service with anti-virus software (Duncan Murdoch) 6. Re: Dream of a wiki GUI for R (Philippe Grosjean) 7. Located Latent Class Analysis (Uebersax) (Karen Chan) 8....

...Subject: [R] How to generate a sequence of dates without hardcoding the year Message-ID: <[179]418059.32636.qm at web56602.mail.re3.yahoo.com> Content-Type: text/plain; charset=iso-8859-1 Hi: I have a dataframe named 'spring' and I am trying to add a new variable named 'IdDate' This line of code works fine: spring$idDate <- seq(as.Date("2008-07-01"), as.Date("2009-06-30"), by="week") But I don't want to hardcode the year because it will be used again the following year Is...