Displaying 20 results from an estimated 10000 matches similar to: "Wish (PR#3690)"
2004 Oct 22
6
How to save a complete image of the current state of R ?
Hello,
I like to save the complete state of R, i.e. including
all environments, objects/workspaces, loaded packages etc..
This wish has arisen since I am not able to reproduce
an error which occurs when running R CMD check.
Many thanks for your advice in advance.
Best Regards
Andreas
2003 Sep 13
5
bug or feature? (PR#4150)
Full_Name: Axel Benz
Version: 1.7.1
OS: Windows
Submission from: (NULL) (137.251.33.43)
This feature seems to be a basic bug:
> 1=="1"
[1] TRUE
> as.numeric(1)=="1"
[1] TRUE
> as.numeric(1)==as.character("1")
[1] TRUE
isn't it necessary to distinguish beteen numbers and characters??
Best Regards,
Axel
2003 Mar 06
4
write.table row.names and col.names (PR#2610)
Full_Name: Wolfgang Huber
Version: 1.6.2
OS: DEC OSF, Win, Linux
Submission from: (NULL) (155.52.45.139)
When data.frames are written to a file using write.table and with row.names and
col.names, then the colnames are displaced by 1 with respect to column content.
Example:
> x = data.frame(
> obscht=c("chriesi", "bire"),
>
2005 Oct 27
2
Critical Bug in type conversions: as.integer, trunc, ... (PR#8255)
Full_Name: Grischa T?dt
Version: 2.1.1
OS: windows XP
Submission from: (NULL) (192.108.25.32)
I have a strange behaviour in R, looks like type conversions are messed up.
To reproduce:
expected:
> typeof(3)
[1] "double"
> as.integer(3)
[1] 3
!!!! strange:
> typeof((0.3/0.1))
[1] "double"
> as.integer((0.3/0.1))
[1] 2
also for trunc:
>trunc(c(5,7))
2003 Oct 20
1
Random Number Generator RNGkind() under "R CMD check" (PR#4691)
Full_Name: Wolfgang Huber
Version: 1.8.0
OS: Linux
Submission from: (NULL) (193.174.58.146)
The man page for RNGkind says that the default is Mersenne-Twister, and when I
start R interactively, I get in fact
> RNGkind()
[1] "Mersenne-Twister" "Inversion"
However, during the execution of "R CMD check" I get
> > ### ** Examples
> >
> > RNGkind()
2006 Jan 01
2
Wish list
This is my New Year wishlist for R features. One
common thread is that I find I sometimes use languages
other than R including javascript, Windows batch and
gawk. Others have mentioned other languages too. It
would be nice if, in those cases I could use R
simplifying development into a single environment
(viz. R).
The following are not in any order.
1. Self Contained Executables
Make it
2006 Nov 09
2
Repeated Measures MANOVA in R
Can R do a repeated measures MANOVA and tell what dimensionality the statistical variance occupies?
I have been using MATLAB and SPSS to do my statistics. MATLAB can do ANOVAs and MANOVAs. When it performs a MANOVA, it returns a
parameter d that estimates the dimensionality in which the means lie. It also returns a vector of p-values, where each p_n tests
the null hypothesis that the mean
2002 Sep 19
1
install.packages() together with pixmap package (PR#2042)
Full_Name: Wolfgang Huber
Version: 1.5.1
OS: Windoof 2000
Submission from: (NULL) (193.174.62.11)
Hi,
Trying to install the binary distribution (zip file) for the "pixmap" package,
as downloaded today from CRAN, I get the following warning "error -1". The
package will not be installed.
Installation of other packages (e.g. pinktoe, acepack) worked fine. The warning
or error
2005 Oct 27
3
Strange behaviour of type conversion (PR#8256)
Where is my error??
I have a strange behaviour in R, looks like type conversions are messed =
up.
Maybe i just make a stupid mistake, but help would be appreciated.
To reproduce:
expected:
> typeof(3)
[1] "double"
> as.integer(3)
[1] 3
> typeof((0.3/0.1))
[1] "double"
!!!! strange:
> as.integer((0.3/0.1))
[1] 2
also for trunc:
>trunc(c(5,7))
[1] 5 7
2020 May 19
2
Graphic parameters with length zero in grid cause R to crash
Hi,
I found in grid package, if the graphic parameters have zero length, R crashes. In the
following code, I only tested `grid.rect()` and the `fill` parameter, but I think it should
be similar as other grid graphic functions.
In `gpar()` function, the graphic parameters are not allowed to have zero length, but
we can make them with zero length by first generating a `gpar` object and then
2015 Apr 29
2
dimnames returned by function apply
Dear all,
I noticed that the dimnames returned by apply are different in the new release.
In the following example. The returned row-names are c(?S?,?T?), but shouldn?t they be c(?X?,?Y?) as in the old release?
Best,
Bernd
>X = array(1:8, dim=c(4,2))
>dimnames(X) = list(c("A","B","C","D"),c("S","T"))
>apply(X, 1, function(x)
2005 May 08
3
Light-weight data.frame class: was: how to add method to .Primitive function
Hi,
Encouraged by a tip from Simon Urbanek I tried to use the S3 machinery
to write a faster version of the data.frame class.
This quickly hits a snag: the "[.default"(x, i) for some reason cares
about the dimensionality of x.
In the end there is a full transcript of my R session. It includes the
motivation for writing the class and the problems I have encountered.
As a result I see
2010 Feb 14
1
Dimensional reduction package
Is there any R package which implements non-linear dimensionality reduction (LLE, ISOMAP, GTM, and so on) and/or intrinsic dimensionality estimation ?
Thank you,
Maura
tutti i telefonini TIM!
[[alternative HTML version deleted]]
2005 Sep 05
1
RODBC and 64 bit
Hi all,
I was quite succesfully working with the RODB package on a 32 bit linux
box to connect to a MSSQL Server via the freeTSL driver. After changing
to a 64 bit environment I ran into some segmentation faults using
function sqlUpdate on large database operations (the actual seg faults
occured in the call to the C function ODBCUpdate).
I just briefly looked into the code and found some extensive
2008 Aug 08
1
operating on arrays of unknown dimensionality
Dear R-users,
I am looking for a way to assign to slices of arrays where dimensionality of the array is not a-priory known.
Specifically, I would like to be able to generalize the following example of dimensionality 2 to an arbitrary diminsionality:
In this example we create an array x, a smaller array y and then assign y to a slice of x.
> dimnmx <- list(c('a','b'),
2017 Mar 09
2
GSoC 2017 Project Proposal
Hello devs.
I would like to propose how I plan to go about improving and getting a
system that can be integrated into Xapian in this GSoC for the clustering
branch.
I have identified three areas of work which were not touched last time.
1) Automated Performance Analysis
I had roughly implemented 2 evaluation techniques previously (Distance b/w
document and centroids within clusters and
2004 Mar 30
5
optim-Bug (PR#6720)
Full_Name: Dr. Hans A. Kestler
Version: 1.8.1.
OS: Linux, Win, Mac OSX
Submission from: (NULL) (134.60.73.116)
The code below produces after a different number of iterations i the following
error:
Error in optim(par = rep(0.5, length(edges)), loglik, method = "L-BFGS-B", :
non-finite value supplied by optim
This was reproducible on different machines (Mac G4 OSX, AMD Opteron
2006 Jan 17
3
Kriging for d>3
Hi,
I'm looking for software that can perform kriging on systems with dimensionality higher than 3, say d=5.
Are anyone aware of packages in R that can do this?
Thanks,
Eivind Sm??rgrav
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2012 Aug 16
3
r data structures
hi,
i'm trying to understand r data structures. i see that vectors, matrix, factors and arrays have a "dimension."
there seems to be no mention of dimensionality anywhere for lists or dataframes. can i consider lists and frames to be of fixed dimension 2?
thanks,
jay s
2005 Feb 22
3
[LLVMdev] Area for improvement
>
> Now the problem is obvious. A two dimensional array access is being
> performed by a single instruction. The arithmetic needed to address
> the element is implicit, and therefore inaccessible to optimizations.
> The redundant calculations can not be eliminated, nor can strength
> reduction be performed. getelementptr needs to be broken down into
> its constituent