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...mes' given for data frame -----Original Message----- From: pd at pubhealth.ku.dk [mailto:pd at pubhealth.ku.dk] On Behalf Of Peter Dalgaard Sent: 08 December 2005 18:57 To: Matthew Dowle Cc: 'r-help at stat.math.ethz.ch' Subject: Re: [R] data.frame() size Matthew Dowle <mdowle at concordiafunds.com> writes: > Hi, > > In the example below why is d 10 times bigger than m, according to > object.size ? It also takes around 10 times as long to create, which > fits with object.size() being truthful. gcinfo(TRUE) also indicates a > great deal more garbage collector acti...

Hi, The following function works, but is there a neater way to write it? f = function(x,...) { # return a character vector of the arguments passed in after 'x' gsub(" ","",unlist(strsplit(deparse(substitute(list(...))),"[(,)]")))[-1] } > f(x,a,b,c*d) [1] "a" "b" "c*d" > Thanks. [[alternative HTML

Hi all, Does anyone know a solution for this error ? > tkwidget(dlg, "iwidgets::spinint", range="{0 23}") Error in structure(.External("dotTclObjv", objv, PACKAGE = "tcltk"), class = "tclObj") : [tcl] wrong # args: should be ".31.1.19 configure -range {begin end}". Thanks, Matthew [[alternative HTML version

Hi, In the example below why is d 10 times bigger than m, according to object.size ? It also takes around 10 times as long to create, which fits with object.size() being truthful. gcinfo(TRUE) also indicates a great deal more garbage collector activity caused by data.frame() than matrix(). $ R --vanilla .... > nr = 1000000 > system.time(m<<-matrix(integer(1), nrow=nr, ncol=2)) [1]

Hi, n = 10000000 L = list(a=integer(n), b=integer(n)) L[[2]][1:10] gives me the first 10 items of the 2nd vector in the list L. It works fine. However it appears to copy the entire L[[2]] vector in memory first, before subsetting it. It seems reasonable that "[[" can't know that all that is to be done is to do [1:10] on the result and therefore a copy in memory of the entire

...ps-- and glad you like the package Mark Mark Bravington CSIRO Mathematical & Information Sciences Marine Laboratory Castray Esplanade Hobart 7001 TAS ph (+61) 3 6232 5118 fax (+61) 3 6232 5012 mob (+61) 438 315 623 > -----Original Message----- > From: Matthew Dowle [mailto:mdowle at concordiafunds.com] > Sent: Friday, 20 October 2006 8:20 PM > To: Bravington, Mark (CMIS, Hobart) > Subject: Debug package question > > > > Hi Mark, > > > > I've been using your excellent debug for a while now. Its truly > > excellent. > > > > The most c...

Kurt, Uwe suggested I write to you as maintainer of chron ... at the start of is.weekend, in the check on the argument type, maybe just change chron() to as.chron()? This would ensure as.chron.POSIXt gets called on POSIXt arguments, and (I think) fixes the problem. I tested and it seems ok. No warning/error required. > is.weekend function(x) { if(!inherits(x, "dates"))

Hi, Is there a function taking a function as an argument, which returns all the functions it calls, and all the the functions those functions call, and so on? I could use Rprof, but that would involve executing the function, which may miss some branches of code. I'd really like a function which looks at the source code to work out all the functions that could possibly be called. When I

Hi, Is there a way to define "+" so that "a"+"b" returns "ab" ? > setMethod("+",c("character","character"),paste) Error in setMethod("+", c("character", "character"), paste) : the method for function '+' and signature e1="character", e2="character" is sealed

I've downloaded this version of the Debian installer: http://ftp.nl.debian.org/debian/dists/etch/main/installer-i386/current/images/netboot/netboot.tar.gz In my domU, the installer reports that no disks are found. If I run a shell from the installer menu, I can successfully partition the disk /dev/sda from the command line, using fdisk I suspect that the Debian installer wants to access

Dear list, RODBC is mostly working very well on Windows XP talking to MS SQL Server. However, when trying to retrieve a result set in repeated batches the first batch returns results ok, but then subsequent calls return no data (see code below). I tried setting believeNRows=FALSE both in odbcConnect() and in sqlGetResults() but this doesn't appear to make any difference. Also odbcFetchRows()

Dear r-help, Both 'omega-devel@omegahat.org' and 'duncan@research.bell-labs.com' appear to be bouncing with 'user unknown' so trying r-help .... [ Btw, "mailing lists" link on omega page is returning "mailman CGI error". ] > > require("RDCOMClient") > Loading required package: RDCOMClient > Error in library(package,

Hi, Following previous discussion on this list (http://tolstoy.newcastle.edu.au/R/devel/05/12/3439.html) I have created a package as suggested, and uploaded it to CRAN incoming : data.table.tar.gz. ** Your comments and feedback will be very much appreciated. ** >From help(data.table) : This class really does very little. The only reason for its existence is that the white book specifies

Hi, We have the error below. Any ideas ? Regards, Matt $ R --vanilla -d gdb GNU gdb 6.7.1-debian Copyright (C) 2007 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html> This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law. Type "show copying"

Dear R-help, Call RInterface.StartRServer ' Works fine Call RInterface.RRun("objects()") ' Works fine Call Rinterface.RRun( other R commands which do not generate errors, the demos etc ) ' Works fine But ... Call RInterface.RRun("doesnotexist") ' Sends Excel into endless loop it appears After about 90 seconds a dialog box appears "Microsoft

It seems is.weekend() is unsure ? # Start R 1.9.0 with --vanilla on windows xp # load package chron > table(is.weekend(sapply(1:100, function(i){Sys.sleep(0.05);Sys.time()}))) FALSE TRUE 68 32 > date() [1] "Wed May 26 11:18:56 2004" > version _ platform i386-pc-mingw32 arch i386 os mingw32 system i386, mingw32

Hi, I'm trying to write a function to return an R vector which points directly to a contiguous subset of another vector, without taking a copy. Since SEXPREC is a header followed by the data, rather than the header plus a pointer to the data, I'm not sure what I'm trying to do is possible. Is there a way of doing this? Similar in spirit to how the R assignment "x=y" does

Hi all, Apologies if this has been raised before ... R's tapply is very fast, but if X has names in this example, there seems to be a huge slow down: under 1 second compared to 151 seconds. The following timings are repeatable and are timed properly on a single user machine : > X = 1:100000 > names(X) = X > system.time(fast<<-tapply(as.vector(X), rep(1:10000,each=10), mean))

Hi All, I'm getting the following error, could anyone help please? $ R CMD INSTALL RODBC_1.1-7.tar.gz * Installing *source* package 'RODBC' ... checking for gcc... gcc -std=gnu99 checking for C compiler default output file name... a.out checking whether the C compiler works... yes checking whether we are cross compiling... no checking for suffix of executables... checking for

Hi, Given factors x and y, c(x,y) does not seem to return a useful result : > x [1] a b c d e Levels: a b c d e > y [1] d e f g h Levels: d e f g h > c(x,y) [1] 1 2 3 4 5 1 2 3 4 5 > Is there a case for a new method c.factor as follows? Does something similar exist already? Is there a better way to write the function? > c.factor = function(x,y) { newlevels =