search for: neophyte

Hi All, Real neophyte here, to both backgroundrb and ruby/rails in general. (Hey, we''ve all got to start somewhere, right!) :) I''ve just been playing around with the example code at http://backgroundrb.rubyforge.org/ , and trying to get all the pieces to work (btw, I''m using version 0.2.1)....

I'm have what's probably a trivial &| silly problem trying to access a c-function in a shared library ( R 0.64, under redhat linux 5.2). R COMPILE rctest.c R SHLIB -o libRC.so rctest.o produce a reasonable looking shared library ('nm libRC.so' shows that the function 'rctest' is present). In R, the command dyn.load("/fullpathname/libRC.so")

Hi all, I'm currently working through the "Beginner's Guide to R" (Zurr et al.) and I'm wondering about the first exercise in chapter 3: I imported the data from BirdFluCases.txt and executed the 'names' and 'str' functions as follows: Bird = read.table(file='C:\\rbook\\BirdFluCases2.txt', header=TRUE) names(Bird) [1] "Year"

Greetings - have downloaded , 'attempted' install of 2.2.8 on OpenVMS Alpha systems (7.2 *and* 7.3) Many problems, up to and including total failure to succeed. Followed instructions (DOWNLOAD, UNZIP "-V", BACKUP.). COMPILE FROM SOURCE - failed, although the Dec CC compiler is one I use frequently. LINK-ONLY - many errors ADDED SNPRINTF.OBJ to the OLB,

Hi, I have no experience with R and I'm finding the manuals a bit obtuse and written as if I already understood R. I'm trying to import a csv file from a floppy and it's not working. The code I'm using is read.table("F:\GEORGIA\species_richness\SR_use.csv", sep=",", header = TRUE, row.names = 1) I'm assuming that this command is case sensitive so

R helpers I am getting to grips with R but came across a small problem today that I could not fix by myself. I have 3 text files, each with a single column of data. I read them in using: myData1<-scan("C:/Program Files/R/myData1.txt") myData2<-scan("C:/Program Files/R/myData2.txt") myData3<-scan("C:/Program Files/R/myData3.txt") I wanted to produce a

Hello from a neophyte! Is there a diagnostic programme which can be run to determine if there are any faults in Samba 2.2.3a? I cannot connect from Win XP to my rev/b iMac (suddenly, maybe 'upgrade' to 10.3.4 had some effect) and the smb crashlog (shown below) has a pile of stuff which is incomprehensible t...

I've just started using R and am still a neophyte, but I found the following curious result. I'm using the current version of R (2.5.1 (2007-06-27) ). Why are the results for the third quartile different in the output from the summary and fivenum commands? For the following data set 457 514 530 530 538 560 687 7...

...00) and have the years correspond to the "water year." Now I wish to obtain some means by something like: waterT<-aggregate(w$value[w$param.name=="Temperature"], list(w$w.year[w$param.name=="Temperature"]),mean) Except that I need to work on the year and being a neophyte in date arithmetic I'm not finding a working method. TIA Clint -- Clint Bowman INTERNET: clint at ecy.wa.gov Air Quality Modeler INTERNET: clint at math.utah.edu Department of Ecology VOICE: (360) 407-6815 PO Box 47600 FAX: (360) 407-7534 Olympia, WA 98504-7600

...to do this to avoid creating a single, self-contained but clunky piece of code. I have searched and found functions such as file(), pipe(), open(), found manuals on creating my own packages, etc. but I become increasingly aware that I don't know exactly what I am looking for (that I am a "neophyte"). Help would be appreciated Derek -- View this message in context: http://www.nabble.com/driver-file-tp24171201p24171201.html Sent from the R help mailing list archive at Nabble.com.

...unction (below) to compute Box & Cox transformations of x for arbitrary values of lambda. I'd like to specify a range of values for lamba (min,max,step) and am having trouble getting the for loop to work. Suggestions? Any pointers to resources for learning to write functions in R for neophyte programmers? Thanks. --Dale boxcox <- function(x,min,max,step) { lambda <- seq(min,max,step) s <- length(lambda) for (lambda in 1:s) n <- nrow(x) if(lambda ==0) xL <- log(x) else xL <- ((x^lambda) - 1)/lambda xLbar <- mean(xL) t1 <- (-n/2)* log((1/n)*sum((xL - xLbar)^2)...

...te reference and where it can be obtained. Suggestion: Might it be possible to put a list of the most important and new literature about R, S, and S+ which has a direct bearing on R in the Documentation section of CRAN along with where they can be obtained? This would be of great help to isolated neophytes beginning to use R. Peter B. -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- r-help mailing list -- Read http://www.ci.tuwien.ac.at/~hornik/R/R-FAQ.html Send "info", "help", or "[un]subscribe" (in the "body", not the subje...

...n 8-bit: http://lists.cs.uiuc.edu/pipermail/cfe-dev/2009-September/thread.html#6349 http://lists.cs.uiuc.edu/pipermail/llvmdev/2009-September/thread.html#26025 with the consensus seemingly being "quite doable, please get a good patch and submit". However the current code appears (to my neophyte eyes) to be explicitly 8-bit, e.g. one instance called out in the mail thread remains: /// isString - This method returns true if this is an array of i8. bool ConstantDataSequential::isString() const { return isa<ArrayType>(getType()) && getElementType()->isIntegerTy(8); } I di...

Dear R community, I am a neophyte and I cannot figure out how to accomplish keeping only the first record for each ID in a data.frame that has assorted numbers of records per ID. I studied and found references to packages plyr and sql for R, and I fear the documentation for those was over my head and I could not identify what may...

Dear List: I am very much a unix neophyte, but recently had a Ubuntu box installed in my office. I commonly use Windows XP with 3 GB RAM on my machine and the Ubuntu machine is exactly the same as my windows box (e.g., processor and RAM) as far as I can tell. Now, I recently had to run a very large lmer analysis using my windows machine,...

Greetings Supreme Council of R Masters, Like toddler, I have gotten my head stuck in the banisters of R ... again. Let it be know I am still a neophyte in the R-community forum world, so please don't flame me too bad. I have two sets of data, each with a set of timestamps. I would like to somehow merge the datasets based on the timestamps and an individual identifier. That is there are several individuals all with timestamps, with times t...

Does anyone know of a R package that will determine the convex hull of a high-dimensional dataset (say 4-10 dimensions). I know chull works for 2D data. I'm neophyte to R and convex hulls so please keep it simple. Many thanks Ben -- Ben Stapley. Biomolecular Sciences, UMIST, PO Box 88, Manchester M60 1QD. Tel 0161 200 5818 Fax 0161 236 0409 -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- r-help mailing list -- Read http://www....

Hello, I have data in a frame: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 I would like them arranged in a single column: 1 2 3 4 . . 8 9 . . 16 etc. I believe this should be possible using reshape, but I can't see how to do it. Thanks for sparing time to help a neophyte, Roger Mason

Hi, R users, What may be the best function in R to do variable selection in logistic regression? I have the same number of variables as the number of samples, and I want to select the best variablesfor prediction. Is there any function doing forward selection followed by backward elimination in stepwise logistic regression? Thanks, Annie [[alternative HTML version deleted]]

Dear R users, I would like to simulate, for 20000 replications, an autoregressive process: y(t)=0.8*y(t-1)+e(t) where e(t) is i.i.d.(0,sigma*sigma), Thank you in advance ____________________________________________________ Écoutez gratuitement le nouveau single de Noir Désir et découvrez d'autres titres en affinité avec vos goûts musicaux