similar to: Announcing a new Ruby journal

I have to persist some data in the database to test the interactions between two of my models. One model has a serial number attribute that is unique, so it must be entered once and only once. rake spec deletes all the data, allowing my tests to pass. . Running rspec under TextMate produces a fail, however, because the data in tables remain. This is somewhat inconsistent, too. Running it

Might not be the best place to ask, but i could get lucky.. I have setup an eclipse environment to write sweave files lately and wanted to switch to knitr. I could get it to work on easy files, but my earlier written sweave file fails to be knit properly. Here is the error message: Quitting from lines 273-276: Error in setwd(base.dir) : kann Arbeitsverzeichnis nicht wechseln (it says: cannot

Hi everyone I have banking data set in long format with 4 columns.One of these columns is bank name which consist of 49 banks and I want the data for only 40 banks out of these 49 so can anyone help me on how to get this 40 banks data My data looks like Year Name totalliabilties assets 1990 a 90 10 1991 a 89 48 1992 a 87

Hello R-Help! I've looked around and have not found: A simple(short) way to hide functions and variables from the global environment. What i want is for a few of them to only be accessable from the scriptfile they're in. I probably could do fun things with environments , but that seems quite a hassle. As example: I have a file that gets me stuff from the database and creates an R object

Can i somehow append objects to an .Rdata file? I didn't see an option for it in the save() method. dump() won't work since i have s4 objects in there.

From: ?????? <NAVER-MAILER at naver.com> Subject: [???? ??] envy721c at naver.cobSDsnLzroZwg66mU7J287J20IOyghOyGoeuQmOyngCDrqrvtlojsig==teuLiOuLpC4= The only plain english in the message is that the mail was denied by the receiver Anyone else getting this?

Hi! If i found a problem with the code of one of the libraries (not core), or, in my current case, would wish something minor changed for convenience, where can i get contact? Can i put it in the "official" bug repository? (Problem discription for anyone interested: Why call the default function kpca for a matrix with kpar=list(sigma=0.2), instead of putting this default sigma into the

Following problem: Say you have a bunch of parameters and want to produce results for all combinations of those: height<-c("high","low") width<-c("slim","wide") then what i used to do was something like this: l<-list() for(h in height){ l[[h]]<-list() for(w in width){ l[[h]][[w]] <- doSomething() } } Now those parameters aren't

This is just a note that R would get a lot more citations if the recommended citation was an article in a recognised journal or from a recognised publisher. I use R in work leading to publications often, and I strongly want to give the R core team credit for their work. However I find that I can't persuade my biological collaborators to include the current R citation (below) in their

Hello, At guides.rubyonrails.org I read about the possibilities of find_in_batches. However I cannot find this option anywhere in the API documentation (api.rubyonrails.org). My question: where should I look for the documentation of this command? -- You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. To post to this group, send email

Hi. I am using a large storage which is ext2 file system of 1T byte. It has many file types, doc, mail data, zip, etc. It doesn't have a database file. I want to change the file system from ext2 to ext3. It also can't divide to any partitions. How to decide journal mode and journal size? Please advice to me. Recommend a journal mode. (orderd or journal) Recommend a journal

http://www.ncbi.nlm.nih.gov/pubmed/21418051 for the full reference. I don't have an electronic copy, but I do have that issue of Biometrics in my office. I'll have a copy sent over. Terry On 07/10/2012 04:08 PM, r-help-request at r-project.org wrote: > Send R-help mailing list submissions to > r-help at r-project.org > > To subscribe or unsubscribe via the World Wide

Has anyone built ruby-debug for Ruby 1.9.1? I am on Leopard. A check around the Web yielded issues with the pair, but no solution (I''ll keep looking), hence my question. Martin

Hi All, I need to normalize/scale string variable which represents interests of customers (e.g., 'cycling, rollerblading, swimming' etc). Does anybody know how to do this, I want then use it along with other numeric variables for SVM classification. Appreciate for any advice. -Alex [[alternative HTML version deleted]]

I'm not sure what the parameter specifies: random if an integer value is specified, random parameter vectors are drawn from the parameter space. What are the parameter vectors and what is the parameter space? What means drawn? greetings Jessi [[alternative HTML version deleted]]

Hi! how do i get to the source code of kpca or even better predict.kpca(which it tells me doesn't exist but should) ? (And if anyone has too much time: Now if i got that right, the @pcv attribute consists of the principal components, and for kpca, these are defined as projections of some random point x, which was transformed into the other feature space -> f(x), projected onto the actual

Hi! I am getting a lot of numbers in the background of the pca screeplots if i use call("plot") and eval(somecall). Til now, creating the calls and plotting later on this way worked fine. Example: pcaI<-prcomp(iris[,1:4]) plot(pcaI) x<-call("plot",pcaI) eval(x) Anyone got an idea how i can avoid that? (also it might take a second or so for the numbers to appear,

I'm making tables for prediction results of classifiers (2 classes) that show the usual numbers, true positives, false positives, etc I used the command table(predictedLabels,realLabels) to make those. I just had a case though ,where one of the label vectors had only one class in it. This will result in only half a table. Compare: x<-c(1,1,1,0,0) y<-c(1,1,1,0,1) table(x,y) to

I know I've seen the answer to this question but could not find it now: What's the appropriate(s) general reference(s) for the "R language and environment for statistical computing and graphics" that should be included in a scientific article? Thanks Agus Dr. Agustin Lobo Instituto de Ciencias de la Tierra (CSIC) Lluis Sole Sabaris s/n 08028 Barcelona SPAIN tel 34 93409 5410

This document from Qualcomm may help. http://www.qualcomm.com/media/documents/qualcomm-dash-licensing-commitment it states : Companies will not have to pay royalties or license fees because they have implemented the DASH Standard using Qualcomm's DASH Essential Patents within a standalone software application sold and distributed separately from a product capable of implementing a WWAN