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Hi All, I now have programming examples for common research tasks done in R, SAS, SPSS and Stata at http://r4stats.com. The examples fall into the following categories: Data Import & Export Data Management Enhancing Output Graphics, ggplot2 Graphics, Traditional Selecting Variables and Observations Statistics For the graphics examples, I got lazy and only show the R code done two ways. All the example...

Hi All, I have substantially expanded the table that compares SAS and SPSS add-on modules to somewhat equivalent R packages. This new version is at: http://r4stats.com/add-on-modules and I would very much appreciate any feedback you might have on it. The site http://r4stats.com is the replacement to http://RforSASandSPSSusers.com and includes the support files for both "R for SAS and SPSS Users" and the new "R for Stata Users", due out...

Greeting Listserv Readers, At http://r4stats.com/popularity I have added plots, data, and/or discussion of: 1. Scholarly impact of each package across the years 2. The number of subscribers to some of the listservs 3. How popular each package is among Google searches across the years 4. Survey results from a Rexer Analytics poll 5. Survey r...

Hi All, I've been fiddling around with various ways to estimate the popularity of R, SAS, SPSS, Stata, JMP, Minitab, Statistica, Systat, BMDP, S-PLUS, R-PLUS and Revolution R. It's not an easy task. You can see what I've come up with so far at http://r4stats.com/popularity . I'm sure people will have plenty of ideas on how to improve this, so please let me know what you think. Cheers, Bob ========================================================= Bob Muenchen (pronounced Min'-chen), Manager Research Computing Support Voice: (865) 974...

Hola: Me ha gustado mucho ese grafico, el otro día encotré http://r4stats.com/articles/popularity/ Aquí se hace un buen repaso a la popularidad de R con muchos y variados parámetros. Saludos El 20/05/14 19:05, Igor Sosa Mayor escribió: > "Marcuzzi, Javier Ruben" > <javier.ruben.marcuzzi en gmail.com> writes: > >> ¿Donde se encuentra...

Greetings, I've just put out the latest version of "The Popularity of Data Analysis Software" at http://r4stats.com/popularity. This update includes complete data for 2010, the addition of number of blogs for each software, more coverage of Statistica, and, where possible, measures regarding the implementations of the SAS Language: Carolina and the World Programming System (WPS). Cheers, Bob =============...

I am needing to create a new identifier variable for a data set which has no ID variable in the original file. I am basically wanting to take the count of each row and add "sd" in front of it - so it would look like so sd1 sd2 sd3 sd4 sd5 etc....... I have no idea how to do this. I am a SAS user trying to learn R. This question may have been answered previously, but I could be

¿Donde se encuentra R dentro de la informática? Hoy de casualidad y por otro tema vi un gráfico que podría emplicar esa pregunta. http://langpop.corger.nl/ Javier Marcuzzi

I'm an SPSS user trying to make the transition to R. Can someone help me translate the following SPSS code into R?: GLM Total_tp1 Total_tp2 WITH Age Sex   /WSFACTOR=Time 2 Repeated   /METHOD=SSTYPE(3)   /CRITERIA=ALPHA(.05)   /WSDESIGN= Time   /DESIGN= Age Sex Age*Sex. Also. can anyone recommend any resources to help SPSS users learn to things in R? Thanks, -kristi [[alternative HTML

...witch to anything else. That said, users of other statistics packages will sometimes make R-users switch to their statistics packages. The only resources I've found for R-users learning SAS are still intended for SAS-users learning R. http://sas-and-r.blogspot.com http://sites.google.com/site/r4statistics/the-books/r4sas-spss Bob Muenchen says that 'Ralph O?Brien says that in a few years there will be so many students graduating knowing mainly R that [he]?ll need to write, ?SAS for R Users.? That?ll be the day!' I can't wait that long. Until then and until I can convince colleagu...

Dear all, I am a stata user and I am moving my first steps in R. I am dealing with a silly issue concerning looping over variables. I read previous posts on similar topics in the R help archive, but I did not find a solution. Here is my case: I run a simple bivariate linear regression saving the output in objects called: pd.memb.0, pd.memb.1, pd.memb.2, pd.memb.3 pd.memb.0 <- lm(E.fs.memb ~

Colleagues, Many of my colleagues come to me for a recommendation for statistical software. Since I am an R user, that's my typical answer. Some colleagues of mine refuse to use it because of its steep learning curve and lack of a GUI. They wanted a statistical software that's free and that had a GUI. I recently learned about JASP. See https://jasp-stats.org/ for more details This may be

How difficult is it to get a good feel for the internals of R, if you want to learn the general code base, but also the CPU intensive stuff ( much of it in C or Fortran?) and the ways in which the general code and the CPU intensive stuff is connected together? R has a very large audience, but my understanding is that only a small group have a good understanding of the internals (and some of those

Could someone tell me how to fix the following error? It looks like that the reason is that df$x is of the class "factor". Thanks! > x1<-LETTERS[1:8]; x2<-letters[1:8]; x1[2]<-NA; x1[4]<-NA; > df<-data.frame(x1=x1, x2=x2) > idx<-which(is.na(df$x1)) > df[idx,1]<-df[idx,2] Warning message: invalid factor level, NAs generated in:

Hi, I need to draw a boxplot for a dataset consisting about 60 groups, the problems is by default the x labels are drawn horizontally, so it is impossible to display the names of all 60 groups. However, if the labels are drawn vertically, it should be possible to display all names. How can this be done? Thanks. Steve [[alternative HTML version deleted]]