search for: shafer

Greetings folks, Shafer's S-plus package "norm" for multiple imputation of missing values in multivariate normal data has been most kindly and usefully ported to R by Alvaro A. Novo. Shafer's website http://www.stat.psu.edu/~jls/ lists four S-plus packages in all: NORM - multiple imputation of mu...

It seems Rails sessions by default only last, well, a browsing session. If the Rails app keeps track of logged-in state by sessions, that state doesn''t survive restarting the browser. How best to change this behaviour, to make the session cookie live forever, or at least beyond browser restarts? It was suggested to me on IRC to combine sessions with code to generate a unique id and

Joe Schafer has some imputation libraries in S plus, and one of them is even on stand alone for Windows. Has anybody attempted to write these very useful packages in R? Jose Ramon Albert Manila, Philippines -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- r-help mailing list -- Read http://www.ci.tuwien.ac.at/~hornik/R/R-FAQ.html Send "info",

Thanks to Fernando Tusell and especially to Brian Ripley for their work on 'mix', leading to an apparently good package mow available on CRAN. Going through the R code for the function prelim.mix, I am wondering why the following method of calculation is used at one point: umd <- as.integer(round(exp(cumsum(log(d))))) (d is a vector containing, in effect, the numbers of levels of

Hello, well, I searched list-archive, cran and the references, but found nothing. Thus: Does anybody around here know anything about Dempster-Shafer Theory, Evidence Theory or Hints in R? Has anybody stumbled about a package that I overlooked or implemented something in this area? I really would like to not implement a hint-model a second time. My apologies if I missed something obvious, but I would be glad if someone could give me a hint. Re...

...days, what''s the real value of this workshop, if any? Any actual experience shared would be useful. You can take it off- list if you prefer for any reason. Thanks in advance. -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-. -.-.-.-.-.-.-.-.-.-.-.-.-.-.- Dan Shafer Technology Visionary - Technology Assessment - Documentation "Looking at technology from every angle" http://www.eclecticity.com -------------- next part -------------- An HTML attachment was scrubbed... URL: http://wrath.rubyonrails.org/pipermail/rails/attachments/20060112/2d757e02/att...

Dear all! I'd like to do multiple imputation of missing values with s-plus libraries that are provided by Shafer (http://www.stat.psu.edu/~jls/misoftwa.html). I wonder, whether these libraries are compatible or somehow convertible to R (because I don't have S-plus), so that I can use this functions using the R Program. I would be happy if you could tell me, -if it is possible to use S-plus libraries with...

...say I was looking for some way to give myself better protection against inadvertent or ill- advised deletion of stuff;; how would you have advised me to go find this little...er...gem?) -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-. -.-.-.-.-.-.-.-.-.-.-.-.-.-.- Dan Shafer Technology Visionary - Technology Assessment - Documentation "Looking at technology from every angle" http://www.eclecticity.com -------------- next part -------------- An HTML attachment was scrubbed... URL: http://wrath.rubyonrails.org/pipermail/rails/attachments/20060111/31cfc03d/att...

...stop posting there). So head over there and share your requests. Who knows? Maybe a book will suddenly appear answering that burning need you feel for a specific bit of Rails learning. -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-. -.-.-.-.-.-.-.-.-.-.-.-.-.-.- Dan Shafer Technology Visionary - Technology Assessment - Documentation "Looking at technology from every angle" http://www.eclecticity.com -------------- next part -------------- An HTML attachment was scrubbed... URL: http://wrath.rubyonrails.org/pipermail/rails/attachments/20060111/46a90e74/att...

Hi, I have had a quick search to see whether this question has been asked/answered before but haven't found anything directly related to it. Basically, I am wondering if I can run the packages, developed by Shafer for S-Plus, that allow multiple imputation of missing data - NORM, CAT, MIX, and PAN. If not, does anyone know if someone has done the modification that would make these packages available in R? And/or, does anyone know of other packages that facilitate multiple imputation of missing data that ca...

anyone can explain me why in the Agile Depot Tutorial application they use i.product_id to find if a product already exist in the cart, because the cart contains items, each of them references a product. I tried i.product_id like in the tutorial and i.product.i all of these 2 notation works , but i find the second seems more clean??? isn''t it. Any explanation will be fine Regards

Greetings, I'm getting this error message using Joe Shafer's "NORM" package. Error in storage.mode(x) <- "double" : (list) object cannot be coerced to type 'double' I'm not sure what this means. I get this message when running s <- prelim.norm(filename) prelim.norm is used to develop some summary statist...

...g to end without stopping. 4. I do have a very NONELEGANT solution: cat("Press <Control-C> to end (rather crudely)") while (TRUE){} This does work, but it requires exiting R using control-C, which is not very satisfying. Any help would be appreciated, Steve Shafer [[alternative HTML version deleted]]

...cific libraries written for S-PLUS 4 and would like to use them in R. Is that possible? I just found out that one of these libraries has already been transfered to R, while 3 others have not. For the matter of beeing more exact I''m interested in the dealing with missing survey data and Joe Shafer has the routines in S posted on his web site. Could you advise how I could get them to work in R? Thank you very much for the raply. Best regards Andrej _________ Andrej Kveder, M.A. researcher Institute of Medical Sciences SRS SASA; Novi trg 2, SI-1000 Ljubljana, Slovenia phone: +386 1 47 06 4...

...ail from numerous Google searches. File locking is of course an issue with multiple users. Client workstations running WinXP Pro and using a mix of AutoCAD versions 2000, 2003 and 2004. Would appreciate feedback, URLs to documents etc. that will be of use in determining the issues. Cheers! Mike Shafer Pittsburgh, PA Email: lists@its-secured.com

Hi Folks, I'm currently looking at missing data/imputation methods (including multiple imputation). S-Plus has a "missing data library". What similar resources are available within R? Or does one roll one's own? Best wishes to all, Ted. -------------------------------------------------------------------- E-Mail: (Ted Harding) <Ted.Harding at nessie.mcc.ac.uk>

Is there anyway we can get rid of this crap on this list? It''s getting old fast. --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Puppet Users" group. To post to this group, send email to puppet-users@googlegroups.com To unsubscribe from this group, send email to

Hi ! I was talking to a seasider and he asked me if it was easy to do the following thing using rails : 1) ask a number to the user 2) ask a second number 3) give the addition of the two number and a link to be able to replay All these things have to be done in one controller and one action, there is no need for verification and other stuff. I tried but I''ve got some problems

Hi Folks, I'm using the 'norm' package (based on Shafer's NORM) on some data. In outline, (X,Y) are bivariate normal, var(X)=0.29, var(Y)=24.4, cov(X,Y)=-0.277, there are some 900 cases, and some 170 values of Y have been set "missing" (NA). The puzzle is that, repeating the multiple imputation starting from the same random seed, I get d...

Dear R-help, I am trying to impute missing data for the first time using R. The norm package seems to work for me, but the missing values that it returns seem odd at times -- for example it returns negative values for a variable that should only be positive. Does this matter in data analysis, and/or is there a way to limit the imputed values to be within the minimum and maximum of the actual