Displaying 20 results from an estimated 800 matches similar to: "Question regarding lu in package Matrix"
2007 Jan 15
2
Whine in dual core Windows PC if R uses full CPU capacity
Dear R-developers,
the following may seem a weird question for R-devel – I try anyway, because it
does seem to be related to usage of R and R's way of interacting with the
hardware.
When running R (2.4.0) on my new dual core Windows XP system (Intel Core 2 Duo
E6600, Mainboard ASUS P5B, BeQuiet Power Unit), I observe various types of
sounds (not related to fans) when running at full
2012 Nov 21
3
Sourcing files with Umlaut in path no longer works
Dear helpeRs,
on my new machine - Windows 7 64Bit, R 2.15-2, I can no longer source
files for which the path contains the o-Umlaut (?). As a historical
burden, my username is Gr?mping and contains that Umlaut (I wouldn't
have chosen it now, but decided to keep it for easy transfer). I have
had the difficulty that I couldn't use the R CMD tools on files with
Umlauts in the path (and
2006 Mar 14
1
R CMD check: problems possibly from mapply?
Dear expeRts,
I am trying to wrap up a package "utilities" (for my internal use). After
adding a function datNAtreat that uses mapply, R CMD check gives WARNINGs
for "S3 generic/method consistency", "checking replacement functions"
and?"checking foreign function calls", all of which are accompanied by the
following error message:
Error in .try_quietly
2005 Nov 18
3
Method for $
Dear R experts,
I have defined a class "myclass" and would like the slots to be extractable
not only by "@" but also by "$". I now try to write a method for "$" that
simply executes the request object at slotname, whenever someone calls
object$slotname for any object of class "myclass".
I don't manage to find out how I can provide this
2006 Dec 28
1
LU bug in Matrix package
There is a bug in Matrix package, please check it, thanks!
Matlab result:
x =
1 2 3 4 5
6 7 8 9 10
11 12 13 14 15
16 17 18 19 20
21 22 23 24 25
>> lu(x)
ans =
21.0000 22.0000 23.0000 24.0000 25.0000
0.0476 0.9524 1.9048 2.8571 3.8095
0.7619
2005 Dec 12
2
Time delay function or plot animation
Dear R-help crowd,
is it possible to specify a time delay for plotting the points in a curve? I
would like to make the plotting process slow enough to show the development
of the graph, and therefore I am looking either for the possibility within
the plot function to specify a plotting speed or (if that doesn't exist) for
a function like "pause" or "wait" that allows
2006 Mar 16
2
hierarchical partitioning
Hello,
I would like to know what it means, when the hier.part's output has a data
frame of a negative independent contribution for variables (?IJ) and how
this can be caused.
Thank you very much.
Yours sincerely
M. Heuner
2007 Mar 23
1
Bug in str or issue with class management in my package?
Dear developeRs,
with R 2.4.1 (and also 2.4.0), the function str() fails on objects of class
relimplmbooteval, if there are unused slots, which is very often the case. I
am not sure whether this is a bug in str() or a correct behavior of str()
that unmasks some sloppiness in my usage of S4 classes (that I am not aware
of)?
Reproducible example (package relaimpo needed):
The program
2009 Mar 24
4
Error in FrF2 example on Mac OS
Dear all,
I just noticed that the 0.9 update for FrF2 did not work out for Mac OS due
to an error in an example that ran without error on all other platforms. I
do not find any reason for this. In the past, umlauts or tab characters have
sometimes been an issue, but I didn't find any of these. The function
definition is
FrF2(nruns = NULL, nfactors = NULL, factor.names = if
2012 Jul 12
4
Two R sessions on multicore computer seem to inhibit each other ?
Dear R-helpers,
I am puzzled by the following observation:
On my home dual core Windows desktop computer, I am used to running two R
sessions in parallel. These do very well in using the full CPU of the
computer (half each) and don't seem to slow each other down.
Today I have started some large computation effort in one of our university
labs, and I intended to go for two R sessions per
2013 Feb 24
2
Issues with TMPDIR/TEMP/TMP? Failure of R CMD check under Windows 7
Dear helpeRs,
on my Windows 7 laptop, I have problems getting R CMD check to work. I
believe it did work completely before, but I am not sure.
Yesterday it almost worked, except for the tests: These were aborted
because of a complaint that the temporary directory wasn't available. I
played with windows environment variables for the temporary directory,
but that didn't solve it.
2019 May 06
1
Bug in function boxplot's axis labeling
Dear developeRs,
I appreciate that boxplot now labels the axes with variable names per
default. However, with argument "horizontal=TRUE" (which I always use),
the default axis labels are mixed up, as can e.g. be seen with
require(boot)
boxplot(time ~ poison, poisons, horizontal=TRUE)
The correct labels would be obtained by
boxplot(time ~ poison, poisons, horizontal=TRUE,
2007 Nov 22
1
R CMD check problem on R 2.6.1 RC
Dear R-developers,
I'm experiencing a problem with having an example run under R 2.6.1 RC
(downloaded and installed today, r43513), which does not occur on R 2.6.0:
The new version of package relaimpo does list package survey under
"Depends", and an example directly (i.e. not only from within a function of
relaimpo) uses function svydesign from package survey. Package survey is
2009 Aug 13
1
Class design as used in package graphics
Dear developeRs,
I just discovered the function plot.design in package graphics that acts as
a method for class design - the second time I come across a class design
outside my own packages. (The first time was in package conf.design, where
Bill Venables encouraged me to ignore it because he does not really use it.)
Where can I find out more about the nature of the class design for which
2009 Jul 17
1
poly objects as data frame columns
Dear UseRs,
I just learnt that the number of columns of a data frame is not always what
I thought it to be, and I wonder where I should have learnt about this.
Consider the following example:
dat <- data.frame(X1=1:10, X2=LETTERS[1:10])
ncol(dat) ## evaluates to 2 (of course)
dat$X1poly <- poly(dat$X1,3)
dat ## five columns displayed
ncol(dat) ##
2013 Sep 06
1
Importing function that is previously imported by other package
Dear developeRs,
I encounter the following problem: in the current version of my package
FrF2, certain calls to a functioni do not work when package combinat is
loaded, because function combn from combinat masks the function from
utils that my package uses.
I tried to solve this issue by importing function combn into the
namespace of FrF2; I don't need to export it, I just want to use it
2009 Jul 24
1
Wishlist: install.packages to look for the newest version of a package (PR#13851)
Full_Name: Ulrike Groemping
Version: 2.9.0 (and older)
OS: Windows
Submission from: (NULL) (84.190.173.190)
When using an older version of R, packages are not found although they are
available for newer versions of R and do work when installed with the old
version. For example, installing DoE.base on R 2.8.1 installs version 0.2, while
CRAN is at version 0.4-1 currently. It would be nice if the
2010 Apr 25
1
Miktex does not work with R CMD check
Dear DevelopeRs,
the issue I am stuck with (I am on Windows, R-2.11): My Miktex (version
2.8) does not work with R CMD check, although Miktex on its own can
pdflatex the tex-file in the Rcheck directory. (This issue has been
going on for a while, and now, after having updated to R-2.11, I finally
want to get it fixed.) Although I have found several similar posts, none
of the answers appears
2009 Aug 25
1
Problem with correct usage of formula environment
Dear all,
I am working on a function formula.design that should automatically generate
reasonable lm formulae for a number of different designs. All works well as
long as all variables used are columns of the design data frame. For one
function, I would like to incorporate a dummy variable for center points
that is not a column of the design. Without this function, it would work
like this (at
2007 Nov 03
1
Strange behavior of pretty
Dear all,
I got stuck with a weird behavior of pretty:
pretty(c(-1,1),n=1)
yields -2, 0, 2 instead of the desired result -1 1.
Likewise,
pretty(c(-2,2),n=1)
yields -5, 0, 5 instead of the desired result -2 2.
With n=0, the result is the same, while with n=2 everything is as
documented.
This behavior nastily messed up some of my cube plots. Is there any chance
that this can be fixed?