[R] The R Journal, Volume 7, Issue 2

Dear all, The latest issue of The R Journal is now available at http://journal.r-project.org/archive/2015-2/ Many thanks to all contributors. Regards, Bettina -- --- Bettina Grün Department of Applied Statistics JOHANNES KEPLER

Re: [R] Syntax error in using Anova (car package)

Dear John, thanks for the hint. This issue should be corrected now. Best, Bettina On 11/25/2015 07:42 PM, Fox, John wrote: Dear David, Thanks for the correction. I copied the link from the R Journal website at , so I guess they need to

[R] The R Journal, Volume 7, Issue 1

Dear all, The latest issue of The R Journal is now available at http://journal.r-project.org/archive/2015-1/ Many thanks to all contributors. Regards, Bettina -- --- Bettina Grün Institut für Angewandte Statistik / IFAS Johannes

Re: [R] Flexmix new data classification

Hi, I built a flexmix GLM binomial model with 200 observations and the model gave me 2 clusters, so if the model is named as newModel then i get the cluster index for each row using newModel@clusters. Now is there any way to predict which cluster the new observation or 201 observation belongs

Re: [R] findFreqTerms vs minDocFreq in Package 'tm'

On 09/12/2011 04:28 PM, vioravis wrote: I am using 'tm' package for text mining and facing an issue with finding the frequently occuring terms. From the definition it appears that findFreqTerms and minDocFreq are equivalent commands and both tries to identify the documents with terms appearing

Re: [R] betareg question - keeping the mean fixed?

On 09/02/2011 07:20 PM, betty_d wrote: Thanks for your response, that does work, however, it is still not quite what want. I would like to tell betareg what the mean is (in my case, 0.5) and force it to use that value. Is this possible? AFAIK package betareg currently does not allow you to fix

Re: [R] betareg question - keeping the mean fixed?

Hi, I have a dataset with proportions that vary around a fixed mean, is it possible to use betareg to look at variance in the dispersion parameter while keeping the mean fixed? I am very new to R but have tried the following: svec-c(qlogis(mean(data1$scaled)),0,0,0) f-betareg(scaled~-1 |

Re: [R] Problem on flexmix when trying to apply signature developed in one model to a new sample

Jon, if I did understand you correctly the problem is that you did not specify the newdata argument in posterior() correctly. You need to specify it in way such that evaluating the formula uses the correct object. If you have a matrix as dependent variable, you have to use a list which

Re: [R] model based clustering with flexmix

In your model driver truncatedmodel() the fit function looks like: z...@fit - function(x, y, w) { para - list(mean = mean(x), sd = sd(x), lower = lower, upper= upper) para$df - 4 with(para, eval(z...@definecomponent)) } w are the a-posteriori probabilities and denote the weights with which

[R] [R-pkgs] New package: exams - Automatic Generation of Standardized Exams

Dear useRs, the new R package exams provides Sweave-based automatic generation of exams with multiple-choice questions and arithmetic problems. The package is available from CRAN: http://CRAN.R-project.org/package=exams It includes a vignette giving an overview of the main design aims and

[R] Call for abstracts: Innovative Tools in Data Analysis (ERCIM08)

Dear useRs, we are organizing the following session Topic: Innovative Tools in Data Analysis Organizers: Achim Zeileis and Bettina Gruen at the First Workshop of the ERCIM Working Group on Computing Statistics June 19-21, 2008 Neuchatel, Switzerland URL: http://www.dcs.bbk.ac.uk/ercim08