similar to: r-inferno.pdf with detailed table of contents and bookmarks

"The R Inferno" is now on the Burns Statistics website at http://www.burns-stat.com/pages/Tutor/R_inferno.pdf Abstract: If you are using R and you think you're in hell, this is a map for you. Also, I've expanded the outline concerning R on the Burns Statistics 'Links' page. Suggestions (off-list) for additional items are encouraged. Patrick Burns patrick at

Hi, I'm just starting out with R and came across R_inferno.pdf by Patrick Burns just yesterday - I recommend it! His description of how 'growing' objects (e.g. obj <- c(obj, additionalValue) eats up memory prompted me to rewrite a function (which made such calls ~210 times) so that it used indexing into a dimensioned object instead (i.e. obj[i, ] <- additionalValue). This

hello, I'm attempting to build the inferno source tree using either of native LTO or jit'd bins and having no obvious luck. im using macports (current as of this email) llvm-2.5 and llvm-gcc on a macbook pro (x86) following the inferno directions verbatim will use 'cc' as the compiler and just works. the build tools are different from the naive build tools as follows:

Hello! I am optimizing my code in R and for this I need to know a bit more about the internals. It would help tremendously if someone could link me to a page with O()-complexities of all the operations. In this particular case, I need something like a linked list with O(1) insertLast/First ability. I can't preallocate a vector since I do not know the final size of the list ahead of time. The

After a lot of processing I get a matrix into M. I expected each row and column to be a vector. But it is a list. R-Inferno says... "Arrays (including matrices) can be subscripted with a matrix of positive numbers. The subscripting matrix has as many columns as there are dimensions in the array—so two columns for a matrix. The result is a vector (not an array) containing the selected

I know that [] is used for indexing. I know that [[]] is used for reference to a property of a COM object. I cannot find any explanation of what [[1]] does or, more pertinently, where it should be used. Thank you. [[alternative HTML version deleted]]

It seems obvious to me that the empty string "" is length 0. cheers Worik [[alternative HTML version deleted]]

Dear all, I would like to ask you if there is a way to define a global variable in R? I am having a bunch of function and I think the easier would be to have a global function defined at some point... Would that be possible? Regards Alex [[alternative HTML version deleted]]

Hi, Wondering if anyone could help me out with this error.Im trying to fill a matrix with random numbers taken from an exponential distribution using a loop: x.3<-matrix(rep(0,3000),nrow=1000,byrow=T)for(i in 1:1000){x[i,]<-rexp(3,rate=2/3)} I get the error message: Error in x[i, ] <- rexp(3, rate = 2/3) : incorrect number of subscripts on matrix Any ideas??? Appreciate any thoughts.

I noticed that the argument names after the dots argument are not partially matched. foo <- function(one, two, ...){ one + two } > foo(o=1, t=2) [1] 3 foo <- function(one, ..., two){ one + two } > foo(o=1, t=2) Fehler in one + two : 'two' fehlt Can someone explain me the reason for this behavior? THX Mark ???????????????????????????????????? Mark Heckmann Blog:

Hello, I want to do fisher test for the rows in data file which has value less than 5 otherwise chi square test .The p values from both test should be stored in one resulted file. but there is some problem with bold if statement. I don't know how implement this line properly. x = cbind(obs1,obs2,exp1,exp2) a = matrix(c(0,0,0,0), ncol=2, byrow =TRUE) #matrix with initialized values

As with a lot of things in R, the behaviour is counterintuitive but (arguably) logical. The key (maybe) is that `a[-x]` does not mean "take all of the elements of a except those indicated by `x`, but rather, "negate x, then take all but the negative elements". In other words, -integer(0) is integer(0) (we multiply *each of the elements of integer(0)* by -1, but

Dear list; How can I speed up the run of following code (illustrative) #======================================================================== con<-vector("numeric") for (i in 1:limit) { if(matched data for the ith item found) { if(i==1) {con<-RowOfMatchedData } else {con<-rbind(con,matchedData)} } }

I would like to have my computer at home and my computer at work to share the same bookmarks. My idea was to have each of the computers sync with a server's bookmark file. If the client has a newer file than the server it would upload it, if the client has an older file it would download it. I already have the authentication keys set up and want to do it over ssh. Would this be one way to

Full_Name: Michael Peck Version: 1.5.0 (12 Jun patch) OS: win2k + sp2 Submission from: (NULL) (65.113.251.175) Bookmarks from table of contents as well as links in text and index do not work. Using Acrobat Reader 5.0.5 9/24/01. [Same behavior was noted in Acrobat reader 4.0, so I downloaded the most recent version]. OS is Win 2k, R was installed from SetupRpatched.exe dated 12 June 02. This

Hi there, I hope to modify values in a vector or matrix in the following code: for (i in 1:9) { assign(paste("a.", i, sep = ""), 1:i) get(paste("a.", i, sep = ""))[i] <- i+50 } I get the following error message: Error in get(paste("a.", i, sep = ""))[i] <- i + 50 : target of assignment expands to non-language object

OK. Now that I have already upgraded, how do I migrate my bookmarks. :( Should have exported them before the upgrade, I suspect....

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Is it possible to add "bookmarks" to an ogg file? I've got a project we're I'd like to be able to set bookmarks at specific times in a file and identify them by id's like "part 1.1" etc. Anyone know if it's possible? Also would it be possible with Ogg speex? Thanks, David - -- If you give someone a

Dear all, I am totally confused by the following R output, but don't have a clue for it. > a <- 1 - 0.2 > a == 0.8 [1] TRUE > a <- 1 - 0.8 > a == 0.2 [1] FALSE > a <- 1 - 0.5 > a == 0.5 [1] TRUE > a <- 1 - 0.6 > a == 0.4 [1] TRUE > a <- 1 - 0.9 > a == 0.1 [1] FALSE My R version is Windows XP R version 2.8.1 (2008-12-22).

If you use Notes 5 with wine, you probably have the problem, that the bookmarks frame doesn't open when you click on Favourites or other folders on the left side. Solution: Create a Memo in Notes Go to the Body field and select Create/Hotspot/Button In the lower half, select Script and paste in this code Sub Click(Source As Button) Dim db As New