similar to: New package: exams - Automatic Generation of Standardized Exams

Dear useRs, this week we have released a new version (1.9) of the "exams" package which now contains flexible tools for generating e-learning exams for various learning management systems: As in earlier versions of the package exam generation is still based on separate Sweave files for each exercise. But rather than just producing different types of PDF output files, the package can

Dear useRs, this week we have released a new version (1.9) of the "exams" package which now contains flexible tools for generating e-learning exams for various learning management systems: As in earlier versions of the package exam generation is still based on separate Sweave files for each exercise. But rather than just producing different types of PDF output files, the package can

Hello, 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 | expt_label + grouped_hpi, data=data1, link.phi="log",

I have installed Sweave as recommended. http://lifeasclay.wordpress.com/tag/sweave/. Placing a test.Rnw file, for instance, in "/Library/Frameworks/R.framework/Versions/2.15/Resources/library/utils/Sweave" generates test.tex files that generate pdf files with LaTeX. To be honest, placing Rnw files seem to make sense. The "exams" package does require not this step. It uses

Hallo! I want to use the package bayesmix. Trying the examples I had no success. The reason is, I think: > haveJAGS() [1] FALSE Have read of JAGS executable (I could not find JAGS.exe in my R directory). What is JAGS? Where can I find or download it? Karl

Hello, I am trying to use the package "exams" to construct problem sets. I have constructed an exercise which generates a list of integers and asks the student to compute the median. rx is the vector of n numbers >str(rx) num [1:16] 21 9 8 18 4 12 17 2 9 7 ... I want to print out the entire vector as part of the problem. When I use \Sexpr(rx) only the first value (in this case

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 more than a specified threshold. However, I am getting drastically different results with both. I have given the results from both the

I want to take the exams of redhat.. I?m starting now.. What advices I can get from you list? _________________________________________________________________ Explore the seven wonders of the world http://search.msn.com/results.aspx?q=7+wonders+world&mkt=en-US&form=QBRE -------------- next part -------------- An HTML attachment was scrubbed... URL:

Problem on flexmix when trying to apply signature developed in one model to a new sample. Dear R Users, R Core Team, I have a problem when trying to know the classification of the tested cases using two variables with the function of flexmix: After importing the database and creating a matrix: BM<-cbind(Data$var1,Data$var2) I see that the best model has 2 groups and use: ex2

hi, i am not able to extract the p-values from the Manova function in the car library. I need to use this function in a high-throughput setting and somehow need the p-values produced. Any ideas? Best regards Bettina Kulle Andreassen -- Bettina Kulle Andreassen University of Oslo Department of Biostatistics and Institute for Epi-Gen (Faculty Division Ahus) tel: +47 22851193 +47 67963923

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 To improve the quality of statistical data analysis the provision of innovative tools which make new

hi, i am getting an error when calling the impute.knn function (see the screenshot below). what is the problem here and how can it be solved? screenshot: ################## *** caught segfault *** address 0x513c7b84, cause 'memory not mapped' Traceback: 1: .Fortran("knnimp", x, ximp = x, p, n, imiss = imiss, irmiss, as.integer(k), double(p), double(n), integer(p),

Hello All, I'm trying to print specific row and column for Observed_Scores matrix, however, when I execute the command "Observed_Scores[1,1]", I get the message "Error in Observed_Scores[1, 1] : incorrect number of dimensions". Could you please help and let me know where is the mistake? Here is my program: library(ltm) library(psych) # Settting the working directory

Hi , is it possible to calculate ld-measures D, D', r and perhaps corresponding p-values with r IF THE PHASE IS KNOWN? The genetics - package provides the LD function only for ambigious phase. Thank you very much Bettina Kulle

Hi All, I'm generating 10 different data sets with 1 and 0 in a matrix form and writing the output in separate files. Now I need to stack all these data sets in one vector and I know that stack only operates on list or data frame however I got these data sets by converting list to a matrix so can't go backwards now. Is there a way i can still use Stack? Please see the program:

Hi folks, Is there anywhere I can possibly get a model of the exam itself, maybe possible scenarios for the prac, etc? To people who have done the exam....any helpful hints ? Thanks,

Dear CentOS users, is it possible to prepare for a certified (big North American Linux vendor) engineer exam with a CentOS install ? I have heard that the test contains questions on specific GUIs, are they included in the CentOS distribution? - Gergely

Muchas gracias Emilio. Sí, yo cometí un error, veo exams puede usar Rmarkdown también. Manuel El dom., 29 mar. 2020 a las 9:11, Emilio L. Cano (<emilopezcano en gmail.com>) escribió: > Manuel, > > No conozco learnr ni gradethis, pero simplemente como apunte decirte que > con exams puedes utilizar Rmarkdown. > > Un saludo, > > Emilio L. Cano >

Hi All, I'm pretty new to this list and to CentOS, so forgive me if this kind of thing is shunned. I have really enjoyed following some threads on this list and learning what everyone out there is doing with the OS. I actually got started on CentOS when researching how to study for the RHCE without forking out big cash for Red Hat licenses, a donation is coming soon. Anyway, I'm

Dear list: I would like to recreate how the artificial data set BregFix was generated in package flexmix (thanks Bettina and Friedrich). The data set is thoroughly described in Grun and Leisch's Computational Statistics & Data Analysis 51(11) :5247-5252 but references to the appropriate seed number(s) are missing (providing these details was certainly beyond the scope of the authors'