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Maybe something of wider value than a GUI (for teaching and other purposes) could be an interface like that in Mathematica (and Maple?), which supports mathematical notation and plots in a command window. This allows showing students exactly what they...

matrix(str, ncol=1) Francesco Napolitano wrote: > Sorry for the dumb question, but I couldn't figure this out myself. > > Consider the following: > >> str <- c("abc","def") >> array(str, c(2,1)) > [,1] > [1,] "abc" > [2,] "def" > > How can i...

the DESCRIPTION file: Package: RSVGTipsDevice Version: 0.7.0 Date: 04/30/2007 Title: An R SVG graphics device with dynamic tips and hyperlinks Author: Tony Plate <tplate at acm.org>, based on RSvgDevice by T Jake Luciani <jakeluciani at...

do.call("rbind", l) or, in the case of matrices, using the abind package: abind(l, along=1) > library(abind) > l <- list(matrix(1:6, ncol=2), matrix(11:14, ncol=2)) > abind(l, along=1) [,1] [,2] [1,] 1...

Maybe you intended to supply a little more information in the body of your message, but without that, the best suggestion I can give with a similar degree of effort on my part is: ?nls At Thursday 08:04 PM...

It seems the problem was that I ran ./configure (I actually ran it twice -- onece before I had installed the MinGW and R-tools stuff and again after I had installed them). After deleting and retrieving all the R-devel...

Try looking in the NAMESPACE file (in the same directory as the DESCRIPTION file). -- Tony Plate David Scherrer wrote: > Dear all, > > I get the error > > "Error in namespaceExport(ns, exports) : > undefined exports function1 , function2" > > when compiling or even when I...

Mike Waters wrote: > Tony Plate wrote: >> [...] > You don't say if this an R-specific problem, or if it afflicts your > computer system clock as well. Thanks, I should have noted that my computer system clock is fine, and as...

If you're not so concerned with the "that are in R" part of your question, the poster child for such success is Jim Simon's Medallion fund at Rennaissance: http://www.bloomberg.com/apps/news?pid=20601213&sid=aq33M3X795vQ...

Ali - wrote: > Henrik, > > [snip] > > Finally, I remind the package author about the original question: > > - How to overload methods in classes created by R.oo package? > [snip] Maybe you missed it in the flurry of messages, but did the idea suggested...

> x <- scan("clipboard", what="") Read 7 items > x [1] "1.11" "10.11" "11.11" "113.31" "114.2" "114.3" "114.8" > gsub("[0-9]*\\.", "", x) [1] "11" "11" "11" "31" "2" "3" "8" > Bernd Weiss wrote: > Dear all...

the DESCRIPTION file: Package: RSVGTipsDevice Version: 0.7.0 Date: 04/30/2007 Title: An R SVG graphics device with dynamic tips and hyperlinks Author: Tony Plate <tplate at acm.org>, based on RSvgDevice by T Jake Luciani <jakeluciani at...

I'd like to be able to access unexported functions in the testing code for a package with a namespace. I know that one way to do this is to use the ":::" operator, but I'd prefer to avoid cluttering...

Some changes have been made to the posting guide, based on suggestions from various R-help contributors over the past year. The most significant change is the recommendation to use 'sessionInfo()' rather than 'version' when asking questions about unexpected behavior...

From ?cbind: Data frame methods The cbind data frame method is just a wrapper for data.frame(..., check.names = FALSE). This means that it will split matrix columns in data frame arguments, and convert character columns to factors unless stringsAsFactors...

The package RSVGTipsDevice allows you to do just it just -- you create a plot in an SVG file that can be viewed in a browser like FireFox, and the points (or shapes) in that plot can have pop-up tooltips...

Try these: > x <- matrix(rnorm(100), ncol=10) > persp(x) > contour(x) Also, look at the R graph gallery: http://addictedtor.free.fr/graphiques/ -- Tony Plate threshold wrote: > Hi All, simple question: > do you know how to graph the following...

At Friday 02:20 PM 10/17/2003 -0400, Gabor Grothendieck wrote: >[material deleted] >Time zones are not part of the problem yet POSIXt forces this >extraneous complication on you. chron has no time zones in the >first place and...

Try the following and look at what they return: str(ca) dimnames(ca) -- Tony Plate laptopcss at gmx.de wrote: > Dear R-Experts, > > I just imported a workspace from Matlab. I know that I can get the names of the...

runner wrote: > In the documentation of 'pairs'(package:graphics), within the last example, > it reads: > > format(c(r, 0.123456789), digits=3)[1] > > Why not simple use: format(r, digits=3)? What is the difference? Here are some examples of...