Displaying 20 results from an estimated 12000 matches similar to: "GDB under windows"
2003 Jul 11
2
unz()
I am having problems getting the unz() function to work as a connection to
start reading a file...
z <- unz("c:/temp/stoxx.zip", "close_tmi_components.txt", "r")
readLines(z,2)
yields the following problems:
> z <- unz("c:/temp/stoxx.zip", "close_tmi_components.txt", "r")
Error in unz("c:/temp/stoxx.zip",
2004 Feb 27
2
Packages in R & Java
Yes, lots of packages do use C/Fortran code ... it would be great if there
were more packages that are "pure R" especially since the advent of S4
classes and namespaces.
Is it worth suggesting that we create a designation "pure R" for packages
that have no external source code and encourage more of these? Indeed, now
the number of packages is so big could they be classified to
2004 Mar 30
1
seq.POSIXt() bug not fixed in R 1.8.1 (PR#4558)
I am still experiencing problems with seq.POSIXt() missing off the last day
of the series:
> seq(as.POSIXct("2004-03-25"),as.POSIXct("2004-03-31"),by="DSTdays")
[1] "2004-03-25 GMT Standard Time" "2004-03-26 GMT Standard Time"
"2004-03-27 GMT Standard Time"
[4] "2004-03-28 GMT Standard Time" "2004-03-29 GMT Daylight
2003 Nov 03
2
POSIXct under R-1.8.0 with Methods package
I am having problems porting a package to R-1.8.0 where I have complex S4
classes with slots inheriting from POSIXct. For example:
> setClass("test1", representation(date="POSIXct"))
[1] "test1"
> new("test1", date=as.POSIXct("2003-10-09"))
Error in ext@test(object) : couldn't find function "%in %"
Under R-1.7.1 this worked
2003 May 19
3
how to run R as a daemon
Hi all,
Using R a as a real-time application called by Php for a website, I
would like to run one R process only, which would manage user
connections. For the time each user who asks for an analysis causes a
new R process to start, which is not suitable in prevision of many
users. R needs about 30 seconds to run the script which makes the
analysis. The problem is that this waiting time is n
2003 Sep 17
2
possible bug in diag()
It concerns trival diagonal matrices:
> diag(1)
[,1]
[1,] 1
> diag(rnorm(1))
<0 x 0 matrix>
> diag(rnorm(1),nrow=1)
[,1]
[1,] 0.4843697
There's an obvious work around... but I thought it was worth notifying the
list.
Regards,
John Marsland
**********************************************************************
This is a commercial communication from
2003 May 13
2
RMySQL crashes R
I have justed upgraded R v1.7.0 on Windows NT 4 and have installed the
latest RMySQL (version 0.5-1)and DBI (version 0.1-5) packages.
When I issue the following commands (tactfully adjusted) R just crashes and
disappears, any ideas?
require(RMySQL)
m <- dbDriver("MySQL")
con <- dbConnect(m, dbname="xxx", user="xxx", password="xxx",
2003 Jul 30
2
building packages using S4 methods
I have been building a package around a sequence of S4 classes which I have
coded in separate *.R files in the "./R" subdirectory of the package.
The package builds without error, but when I load it in R I get:
Error in reconcilePropertiesAndPrototype(name, slots, prototype,
superClasses) :
Class "xxxx" extends an undefined class ("yyyyyy"
I guess R is trying to
2003 Dec 03
1
Rblas for dual Xeon
Does anybody have a tuned Rblas.dll compiled against ALTLAS for a dual Xeon
system?
Unfortunately, we have very strict security that does not allow compilers of
any sort on production desktops - we only have Pentium III development PCs.
Regards,
John Marsland
**********************************************************************
This is a commercial communication from Commerzbank AG.\ \
2004 Oct 26
1
Problem with make recommended
I have been having problems making the recommended packages under windows NT
when WINHELP is set to NO. It seems to go ahead and create the chm files and
then fall over with an error. The base packages work fine.
Clearly I can fix this myself messily, but I thought it might be useful
feedback.
Regards,
John Marsland
_
platform i386-pc-mingw32
arch i386
os mingw32
system
2003 Jun 10
1
c(...) and methods
I have been writing some S4 classes and have a problem about how I might
pass a signature to "c()".
Take the following example:
setClass("collection", representation("list", date="POSIXt"))
x <- new("collection", list(1,2,3), date=Sys.time())
y <- new("collection", list(4,5,6), date=Sys.time())
obviously, I can do c(x,y), but
2003 Jul 09
2
Packages, generics, S3 and S4
My question has two parts.
The first is with regard to the frame or environment in which generic
functions are defined in packages. It seems as though they are defined
(i.e. exist as objects) in frame 1, even when defined in a package.
The following is a short example:
setClass("track",representation(x="numeric",y="numeric"))
plotTrack <- function(x,y,...)
2003 Jun 13
1
Documenting classes and methods: was Re: R-devel Digest, Vol 3, Issue 23
Might it be an idea to make "?" a special operator akin to "+" or "[", R
users could then write their own help functions - may be even making "?"
generic? With the proposed xml help system one could imagine quite
sophisticated context sensitive help systems.
Regards,
John Marsland
PS this has been a very useful debate for those of us enthusiastically
2003 Aug 05
1
RE: [R] ^ operation much slower in R 1.7.1 than in R 1.7 .0 ???
I have both the CRAN binary and my own compiled version of R v1.7.1 on the
same machine (Dell Pentium III 800 MHz running NT 4)
Using the example provided earlier:
> phi <- 1.6180339887498949
> a <- floor(runif(750000)*1000)
> system.time(b <- (phi^a - (-phi)^(-a))/sqrt(5))[3]
I get 10.99 secs on the CRAN binary and 2.09 secs on my own compiled
version.
I hope this helps
2003 Sep 30
3
Adding Tk extensions to R for windows
Hi,
I'm developing an R/TclTk application which uses the BWidget and
Tktable Tk extensions and I'm trying to make it easy to install.
For now, I'm focusing on Windows users who start with nothing.
I have built Tcl/Tk and Tktable for windows using Msys/MinGW.
(BWidget contains only Tcl scripts so does not need building.)
I have then copied Tktable and BWidget into the lib subdirectory
2003 Sep 18
0
non-numeric binary ops?
Has there been a recent change in the behavior of binary operators?
In SparseM it was, until quite recently ok to do scalar multiplication
but now,
> A*4
Error in A * 4 : non-numeric argument to binary operator
> 4*A
Error in 4 * A : non-numeric argument to binary operator
> A%*%A
An object of class "matrix.csr"
Slot "ra":
[1] 1 1 1
Slot "ja":
[1] 1 2 3
2003 Aug 05
3
s4 methods and base
I'm sure that many people are in the same position as me in that they are
trying to write packages and code that is vaguely "future proof".
Would it be possible to get some guidance on how the R-core team see the
evolution of the "base" package with regard to s4 methods.
There seem to be quite a lot of inconsistencies between s3 and s4 methods
and classes currently and
2001 Nov 28
1
Assignment to a list in a function
Assignment to a list in a function does not behave as I would expect.
The following function illustrates the point
#----------------------------------------
temp _ function()
{
nf _ 2
ns _ 5
z _ vector("list",ns)
x _ matrix(NA,nrow=ns,ncol=nf)
for(j in 1:ns)
{
for(i in 1:nf)
{
x[,i] _ i+j*100
}
z[[j]] _ x
print(z[[j]])
}
z
}
2002 May 28
1
constrained regression
I want to do a linear regression where the coefficients
obey two linear constraints, and also are all non-negative.
What is the best way to do this? Computational speed is a
consideration as I must do it many times.
When this question was asked previously on the list, quadprog
was suggested - is this the best solution?
(I may have missed something obvious in the documentation,
but I have
2004 Feb 26
2
package 'stats' needs import directive for 1.9.0?
I maintain the Irregular Time Series (its) package on CRAN. I am currently
testing a release. Under 1.8.1 I am able to define a S4 generic 'start' as
follows:
if(!isGeneric("start")) {setGeneric("start", useAsDefault=start)}
Under 1.9.0, Rcmd check generates an error, as 'start' is not recognised.
If I use the NAMESPACE directive IMPORT, all is well: