similar to: Sweave question: prevent expansion of unevaluated reused code chunk

Dear list, Inspired by the original Knuth tools, and for paedaogical reasons, I wish to produce a document presenting some source code with interspersed comments in the source (see Knuth's books rendering TeX and metafont sources to see what I mean). I seemed to remember that a code chunk could be defined piecewise, like in Comments... <<Chunk1, eval=FALSE, echo=TRUE>>=

Short question: is there way to tell EM to actually send data after send_data call? I''m building a file transferring app. I send Mashal.dump''ed metadata first, and then - the file contents (chunked). I found a silly bug: receive_data() gets marshalled metadata and the first chunk of the file in a single variable. Like that: c1.send_data("meta")

On Fri, 10 Feb 2023 23:38:55 -0600 Spencer Graves <spencer.graves at prodsyse.com> wrote: > I have a 4.54 GB file that I'm trying to read in chunks using > "scan(..., skip=__)". It works as expected for small values of > "skip" but goes into an infinite loop for "skip=1e11" and similar > large values of skip: I cannot even interrupt it; I

Full_Name: Kevin Coombes Version: 2.4.0 OS: Windows XP Submission from: (NULL) (143.111.22.24) I'm running R 2.4.0 on a Windows XP machine, with only the default packages loaded. Running Sweave or Stangle on the following Rnw file: -------------- % bug.Rnw \begin{document} Demonstrate an Sweave/Stangle bug. <<info>>= sessionInfo() @ <<getFDR>>= x <- 1 @

Hi all, first of all, I'm not an expert on R, I'm still learning, so sorry if this is a stupid question... I have a large dataset that is to big for my computer memory, and I found quite useful the package biglm. Now everything is working perfectly. But if I want the residuals, how I can do it? Let's say that we are running the example: > data(trees)>

Thanks for doing this Thomas, I have been thinking about what it would take to do this, but if it were left to me, it would have taken a lot longer. Back in the 80's there was a statistical package called RUMMAGE that did all computations based on sufficient statistics and did not keep the actual data in memory. Memory for computers became cheap before datasets turned huge so there

Hi, ?I have a list of files in one of my working directories: "chr17.chunk1.dose.fvd" "chr17.chunk1.dose.fvi" "chr17.chunk1.prob.fvd"? "chr17.chunk1.prob.fvi"? ........... ......... ........ "chr17.chunk10.dose.fvd" "chr17.chunk10.dose.fvi" "chr17.chunk10.prob.fvd" "chr17.chunk10.prob.fvi" And I am

Hi, I am using R's grep function to find patterns in vectors of strings. The number of patterns I would like to match is 7,700 (of different sizes). I noticed that I get an error message when I do the following: data <- array() for (j in 1:length(x)) { array[j] <- length(grep(paste(patterns[1:7700], collapse = "|"), x[j], value = T)) } When I break this up into 4 chunks of

Hi, ?I am working with the following list of files: [1] "study_chr1.one.phased.impute2.chunk1"?????????????? [2] "study_chr1.one.phased.impute2.chunk1_info"????????? [3] "study_chr1.one.phased.impute2.chunk1_info_by_sample" [4] "study_chr1.one.phased.impute2.chunk1_summary"?????? [5] "study_chr1.one.phased.impute2.chunk1_warnings"?????? The

Hello, All: I have a 4.54 GB file that I'm trying to read in chunks using "scan(..., skip=__)". It works as expected for small values of "skip" but goes into an infinite loop for "skip=1e11" and similar large values of skip: I cannot even interrupt it; I must kill R. Below please find sessionInfo() with a toy example. My real problem is a large

Suppose I start building nodes with (say) 24 drives each in them. Would the standard/recommended approach be to make each drive its own filesystem, and export 24 separate bricks, server1:/data1 .. server1:/data24 ? Making a distributed replicated volume between this and another server would then have to list all 48 drives individually. At the other extreme, I could put all 24 drives into some

Dear All, My main objective was to compute the distance of 100000 vectors from a set having 900 other vectors. I've a file named "seq_vec" containing 100000 records and 256 columns. While computing, the memory was not sufficient and resulted in error "cannot allocate vector of size 152.1Mb" So I've approached the problem in the following: Rather than reading the data

Dear list members, I and my students have encountered an intermittent problem using the Rcmdr package (version 0.9-0) under Windows (with the SDI). The problem occurs both in versions 1.7.1 and 1.8.0 of R. The problem seems to occur only in the following context: The "Edit data set" button is pressed in the Rcmdr GUI. This executes the fix() function on the active data frame,

Hi, I'm trying to get ...as a list of unevaluated arguments, ie. substitute(list(...)) gives me an unevaluated list of the arguments, but I want a list of the unevaluated arguments. My attempts so far: (function(...) substitute(...))(a=1, b=a) # Only returns first (function(...) substitute(list(...)))(a=1, b=a) # Unevaluated list, not list of unevaluated (function(...)

Hi, How to turn a character string into an unevaluated R object? I want to load some files in a directory into data matrix R objects. I could do this with read.table and assign (see below). Then, I want to turn the character string representing a file name (the evaluated expression of i) into an unevaluated R object. Basically, I want to create matrices whose names are the same as the related file

Hi R-users, I would like to create an expression without evaluating it. Then paste that expression to an object. Example: Result <- paste('Result', 1, sep="") paste(Result, substitute(apply(exp.des[1:10,], 1, one.row, parms=parameters)), sep="<-") However this pastes EACH element of the unevaluated expression. Instead I just would like the expression

Hello, x<- "something(a+b) + c" is there any function F such that F(x) gives me the unevaluated value of x, i.e. something(a+b)+c I would appreciate any help on this thanks --------------------------------- [[alternative HTML version deleted]]

HI, As I'm trying to compute Taylor series, I'm having problems in adding and multiplying unevaluated expressions. I searched for a solution but found none. my Taylor function works fine for evaluating functions as you can see here: rTaylorVal=function(exp,x0,dx,n) { ls=list(x=x0) newexp=eval(exp,ls) exp0=exp for (i in 1:n){ exp0=D(exp0,"x")

-------- Original-Nachricht -------- Betreff: Re: [R] Adding and Multiplying two Unevaluated Expressions Datum: Tue, 01 Dec 2009 23:49:39 +0100 Von: Benjamin M?ller <ben_mueller.bm at web.de> An: Rolf Turner <r.turner at auckland.ac.nz> Referenzen: <20091201144125.316310 at gmx.net> <8E40E49F-E8FC-4FBD-8CC5-93789FFB0E53 at auckland.ac.nz> This works fine for your

Hi there, Suppose the cmd is "a<-3", I can parse the cmd sexp with R_ParseVector and eval it. My question is - is it possible to parse a cmd like "a <- ?", afterwards evaluation will give corresponding result depend on different argument? In other words, '?' is just a placeholder. Thanks. Xin [[alternative HTML version deleted]]