similar to: [R] function changes argument (PR#9216)

Dear R-list, the following function f changes L. I thought, assignments within functions are only local? f<-function(LL) { for (ll in LL) { ll$txt<-"changed in f" } } l<-list(txt="original value") L<-list(l) L[[1]]$txt f(L) L[[1]]$txt gives (using R 2.3.1): ... > L[[1]]$txt [1] "original value" > f(L) > L[[1]]$txt [1] "changed in

Is there any graphical frontend/secondary programm (freely availible for Windowsor Linux) which can be used with R to display the results of a principle component analysis in 3D space (rotatable!?)? It works with Spotfire, but is there any freely or cheaply availible programm? -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- r-help mailing list -- Read

Hi all, I'm new to R. Having a functional background, I was wondering what's the idiomatic way to iterate. It seems that for loops are the default given there's no tail-call optimization. I'm curious to know whether there is a way to transform the following toy snippet into something that doesn't eat up gigabytes of memory (like it's for loop counterpart) using laziness:

Dear R team, when using optim with method "CG" I got the wrong $value for the reported $par. Example: f<-function(p) { if (!all(p>-.7)) return(2) if (!all(p<.7)) return(2) sin((p[1])^2)*sin(p[2]) } optim(c(0.1,-0.1),f,method="CG",control=list(trace=0,type=1)) $par 19280.68 -10622.32 $value -0.2346207 # should be 2!

I've redirected this reply from r-help to the bugs list. On 11/3/2006 8:25 AM, vito muggeo wrote: > Dear all, > I am dealing with the following (apparently simple problem): > For some reasons I am interested in passing variables from a dataframe > to a specific environment, and in fitting a standard glm: > > dati<-data.frame(y=rnorm(10),x1=runif(10),x2=runif(10)) >

Ok you in Grub press tab and then add ?3? after the initrd entry ?. quiet?? yum remove xorg-x11-drv-nouveau And see if X11 come up with standard frambuffer? Disable nouveau complete from kernel if the upper not helps. nano /etc/modprobe.d/blacklist-nouveau.conf blacklist nouveau > Am 04.08.2017 um 12:52 schrieb wwp <subscript at free.fr>: > > Hello, > > > On Thu,

Ok, I have trixbox working how I want. How do I now (cheaply as possibly) get a phone number so people can call it from any number? I am just doing a prototype so just want it done cheaply so I can demo it to my supervisors. Thanks! -------------- next part -------------- An HTML attachment was scrubbed... URL:

Dear ext3-users, I write scientific number-crunching codes which deal with large input and output files (Gb, tens of Gb, as much as hundreds of Gygabytes on occasions). Now there are these multi-core setups like Intel Core 2 Duo becoming available at a low cost. Disk I/O is one of the biggest bottlenecks. I would very much like to put to use the multiple processors to read or write in parallel

Full_Name: Jussi Jousimo Version: 2.2.0 beta OS: Windows XP Submission from: (NULL) (193.167.195.60) I'm trying to assign a zero length vector to a list: x<-numeric() length(x) foo<-list() foo$bar[[1]]<-x length(foo$bar[[1]]) foo But in the list this vector turns out to be length one with random content. x<-character() makes R to crash.

I agree. I plan to implement that next! > On Sep 21, 2015, at 4:25 PM, Hal Finkel <hfinkel at anl.gov> wrote: > > However, I think that unless we're able to e-mail commit authors who cause regressions like we do for buildbot failures, as well as others who are architecture performance experts on the relevant systems, this won't see the use it needs. -------------- next

Considering the python code: for k, v in d.items(): do_something(k); do_something_else(v) I have the following for R: for (i in c(1:length(d))) { do_something(names(d[i])); do_something_else(d[[i]]) } This does not seem seems idiomatic. What is the best way of doing the same with R? Thanks. Luis

Something in new() or validObject() in the methods package is messing up. This happens in both 2.1.0 and R-devel in Windows. I'd like to have an empty expression for a slot in a class. An empty expression is an expression: > is.expression(expression()) [1] TRUE > > is(expression(), "expression") [1] TRUE > class(expression()) [1] "expression"

Looking for suggestions on following two queries. Query 1 ------------------------------ Are the two following lines of code different in Ruby / Rails ( in a *.html.erb) file. <% if @forms.count != 0 %> <!-- first code --> Vs. <% if @forms.count %> <!--second code --> @forms is an array of objects. Coming from "C" language development background, i thought

Hello, I have a vector of 1,000,000 numbers and another vector of 1,000 divisors. What I'd like to do is to divide the first 1,000 numbers of the first vector by the first divisor, then the next 1,000 by the second divisor and so on. I came up with this, but I was wondering if there is a more idiomatic, R-like way to write it: x <- ... divs <- ... for (i in seq(from = 1, to = 1000000,

On Tue, Feb 10, 2009 at 10:11 AM, Duncan Murdoch <murdoch at stats.uwo.ca> wrote: > Stavros Macrakis wrote: >> On Tue, Feb 10, 2009 at 8:31 AM, Duncan Murdoch <murdoch at stats.uwo.ca>wrote: >>> The evaluator recognizes the context of usage and will get the >>> function for a function call.... >> Can you point me to chapter and verse in the language

(Moved from r-devel to r-bugs) On 3/24/2006 5:03 AM, Antonio, Fabio Di Narzo wrote: > Hi all. > There's a bug in plot.acf, when plotting acf for multivariate time series. > Here a reproducible example: > > X <- rnorm(1000) > Y <- -X + rnorm(1000, sd=0.6) > Z <- cbind(X,Y) > > In > acf(Z) > cross-correlation plot y-axis is limited to 0-1. But: >

I am the maintainer of a Bioconductor package (affylmGUI) which uses tcltk. It freezes inconsistently on MS Windows, but not Mac or Unix. see details below. After considerable testing I have reduced the problem from a few thousand lines of code to 30 lines! If you paste the following lines of code into an R window: testGUI <- function(){ require(tcltk) MainWindow <-

On August 2, 2017 3:18:29 AM CDT, wwp <subscript at free.fr> wrote: >Hello Johnny, > > >On Fri, 28 Jul 2017 13:47:14 -0500 Johnny Hughes <johnny at centos.org> >wrote: > >> On 07/28/2017 11:32 AM, wwp wrote: >> > Hello Johnny, >> > >> > >> > On Fri, 28 Jul 2017 10:33:15 -0500 Johnny Hughes ><johnny at centos.org>

Full_Name: Andreas Kiermeier Version: 2.0.0 OS: Windows XP Submission from: (NULL) (203.26.136.133) When "rot=-90" in the scales argument of barchart (and possibly other trellis graphics) the axis label disappears behind the bars and only the last character can be seen. For "rot=90" things work fine.

I have a class which stores as one of its attributes a day of the week as an integer (0-6, 0=Sunday, standard UNIXy values). I want, obviously, the views to show the weekday name and the forms to provide a drop-down with the weekday names. Essentially it''s a vrtual attribute whose value is the localized weekday name, which maps to the integer value that''s actually stored.