similar to: Wiki entries on "package development process" and "software repository"

>From: Sundar Dorai-Raj <sundar.dorai-raj at PDF.COM> >Reply-To: sundar.dorai-raj at PDF.COM >To: Zhen Pang <nusbj at hotmail.com> >CC: r-help at stat.math.ethz.ch >Subject: Vectorising and loop (was Re: [R] optim "a log-likelihood >function") >Date: Wed, 29 Sep 2004 18:21:17 -0700 > > > >Zhen Pang wrote: > >> >>I also use

I've just encountered a segfault when using DierckxSpline::percur function. Below is the minimal example which triggers the error: --- library(DierckxSpline) x <- 1:10 y <- rep(0, 10) pspline <- percur(x, y) --- *** caught segfault *** address (nil), cause 'memory not mapped' Traceback: 1: .Fortran("percur", iopt = as.integer(iopt), m = as.integer(m), x =

In order not to forget it (I have not got any answer so far) ... Uwe Ligges -------- Original Message -------- Subject: plotmath in underlined style; was: Re: [R] Underline in expression(). Date: Sun, 26 Sep 2004 18:50:02 +0200 From: Uwe Ligges <ligges@statistik.uni-dortmund.de> Organization: Fachbereich Statistik, Universitaet Dortmund To: John Janmaat <jajanmaat@netscape.net>,

Note that package.descripton() is deprecated in R-1.9.0. You have to use packageDescription() instead. Jim James W. MacDonald Affymetrix and cDNA Microarray Core University of Michigan Cancer Center 1500 E. Medical Center Drive 7410 CCGC Ann Arbor MI 48109 734-647-5623 >>> Sundar Dorai-Raj <sundar.dorai-raj at PDF.COM> 03/30/04 10:51AM >>> You can access this from

When I saw the subject of the original message on R-help, I was 95% confident that I knew the answer (before I had seen the question). This made me think that perhaps for some functions there should be a 'Troubleshooting' section in the help file. The current help file for 'integrate' does say, as Sundar points out, what the requirements are. However, I think more people would

Any way of mixing bold and plain fonts in text() (or mtext(), etc.)? I'm looking for a solution that doesn't require manually spacing two calls of text(). For example: text(x=0,y=0,labels="bold(Figure 1.) plain(This is a picture.)") where "Figure 1." is bold-faced and "This is a picture." is plain-faced. I've tried to trick plotmath into doing this but

An example from the sos package: Its DESCRIPTION file says Author: Spencer Graves, Sundar Dorai-Raj, and Romain Francois. However, the package includes a findFn function, whose help file includes an Author(s) section, which reads, "Spencer Graves, Sundar Dorai-Raj, Romain Francois. Duncan Murdoch suggested the "???" alias for "findFn" and contributed the code for

> From: Randall R Schulz > > Sundar, > > On Friday 23 September 2005 06:48, Sundar Dorai-Raj wrote: > > Randall R Schulz wrote: > > > Hadley, > > > > > > ... > > > > > > Perhaps I'm dense, but I cannot find the software at the URL you > > > mention. There are links to a paper and a PDF slide presentation, > >

I'm new to lattice and can't figure out what the problem is with the following example: ######################### > library(lattice) Loading required package: grid Attaching package `lattice': The following object(s) are masked _by_ .GlobalEnv : xyplot The following object(s) are masked from package:base : levels > test.data <- data.frame(x=rnorm(100), +

Hi All: This follows my earlier post on webized slides on lecture presentation on introducing R. I learned that in Mozilla (Firefox) browsers, the slides did not show up. Sorry for the no show. As a reluctant windows user, I kind of carelessly clicked through Powerpoint to convert the presentation file to its html form, unwittingly leading to the mess. See if it got corrected now (I do not have

First of all, I do not understand why conversion to characters are not allowed. That's what Sundar's solution is doing implicitly (but more elegantly). Here's a test of all three. See the function definitions below. > f1 <- factor(sample(letters[1:3], 1e4, replace=TRUE)) > f2 <- factor(sample(letters[3:5], 1e4, replace=TRUE)) > f3 <- factor(sample(letters[5:7],

Any ideas on adding text to persp plots? The perspp function from S-plus is not implemented. I'm using R1.3.0 on Win2000. Thanks, Sundar -- Sundar Dorai-Raj, Ph.D. Assistant Professor Discrete & Statistical Sciences Office: (334) 844-3647 231 Allison Lab Fax: (334) 844-3611 Auburn University Email: dorairaj at dms.auburn.edu Auburn AL 36849-5307

Another question about lattice: Is there a way to use plotmath in the labels and strips? E.g. xyplot(y~x|group,data=test.df, panel=function(x,y,subscripts,df) { llines(x,y,col="black",lwd=2) llines(x,df[subscripts,"lowerCI"],lty=2,col="#aaaaaa") llines(x,df[subscripts,"upperCI"],lty=2,col="#aaaaaa") },

Full_Name: Sundar Dorai-Raj Version: 1.8.1 OS: Windows 2000 Professional Submission from: (NULL) (12.64.199.173) I discovered this problem when trying to use princomp in package:mva when a column in my matrix was all zeros and I set cor = TRUE (thus division by 0). Doing so hangs R, never to return. I have to shut down Rterm in the Task Manager and lose all work from the current image. I tracked

Full_Name: Sundar Dorai-Raj Version: 2.8.0 OS: Windows Submission from: (NULL) (76.220.41.126) The following code crashes R: library(tcltk) tt <- tktoplevel() tc <- tkcanvas(tt, yscrollcommand = function(...) tkset(ts, ...)) > sessionInfo() R version 2.8.0 (2008-10-20) i386-pc-mingw32 locale: LC_COLLATE=English_United States.1252;LC_CTYPE=English_United

I sent a query to R-Help about the availability of nonmetric multidimensional scaling (MDS) algorithms in R. I would like to thank Tony Rossini, Jonathan Baron, Sundar Dorai-Raj, and Brian Ripley for helpful replies. The gist of the replies is that isoMDS in the MASS library provides Kruskal's method for nonmetric MDS, sammon in the MASS library provides Sammon's nonlinear mapping method

Searching help pages of contributed packages just got easier with the release of the new "sos" package. This is a replacement for and substantial enhancement of the existing "RSiteSearch" package. To learn more about it, try vignette("sos"). We hope you find this as useful as we have. Spencer Graves, Sundar Dorai-Raj, Romain Francois

All San Francisco Bay Area useRs, On March 11th, Spencer Graves & Sundar Dorai-Raj will talk about Creating R Packages, and related issues. This is the first of our (now) regular monthly meetings, details here http://www.meetup.com/R-Users/calendar/9718957/ Last week Wednesday, we had over 60 people attend our 2009 kick-off meeting in cooperation with Predictive Analytics World (see Group

A new "RSiteSearch" package is now available on CRAN. This makes it much easier to find things among contributed packages (including all CRAN packages). The capabilities are further described in system.file('doc', 'RSiteSearch.pdf', package='RSiteSearch')." Spencer Graves Sundar Dorai-Raj Romain Francois

A new "RSiteSearch" package is now available on CRAN. This makes it much easier to find things among contributed packages (including all CRAN packages). The capabilities are further described in system.file('doc', 'RSiteSearch.pdf', package='RSiteSearch')." Spencer Graves Sundar Dorai-Raj Romain Francois