Displaying 20 results from an estimated 10000 matches similar to: "Atlas shared"
2005 Jan 05
2
How to connect R with a C code which includes Atlas
Hello, everybody,
Happy New Year!
I am a graduate student from Concordia University. I meet a problem when I am
working on my thesis. I hope I will get help from you.
I have a mathematical model which was already implemented by using R language.
However, part of this model includes fixed point iteration algorithm and
calculation of large linear equations which n will get to 5000. Because of
2004 Sep 20
0
[Old '.so' file
I noticed the same thing as I reported below, when I upgraded from
R-2.0.0-alpha-20040918 to today's beta version:
'R CMD check' failed as before; but after cleaning 'src' from .o and .so
files, it worked again. So the two-day-old '.so' file is obviously different
from today's. Has compiler directives changed in the two last days? Or what
is happening?
G?ran
On
2005 Aug 29
1
BLAS and ATLAS
On Mon, Aug 29, 2005 at 11:48:23AM +0100, Prof Brian Ripley wrote:
> On Mon, 29 Aug 2005, G?ran Brostr?m wrote:
> >LAPACK/BLAS routines call xerbla "if an input parameter has an
> >invalid value" (exact quote from XERBLA at Netlib). Other types of errors
> >are not printed (by xerbla), but it is up to the user to check the return
> >value of the argument
2001 Nov 12
2
Announcement: Automatic ATLAS support under Debian GNU/Linux
[ If this is considered off-topic please let me know in private mail. ]
With the current version of the glibc library in Debian's "testing" and
"unstable" distributions, ldconfig now loads the ATLAS optimised BLAS without
any user intervention beyond installation of the Atlas and R or Octave
packages.
ATLAS can lead to very dramatic speed increases (up to a factor of ten,
2003 May 14
2
Two names of a function
Is it possible to let a function be known under two names without having
two identical copies of the function body?
---
G?ran Brostr?m tel: +46 90 786 5223
Department of Statistics fax: +46 90 786 6614
Ume? University http://www.stat.umu.se/egna/gb/
SE-90187 Ume?, Sweden e-mail: gb at stat.umu.se
2004 Dec 07
1
read.spss: unrecognized record type
When reading an spss file, I get the following message:
Warning message:
../totmorH.sav: Unrecognized record type 7, subtype 13 encountered in system file.
What does it mean? Do I have to worry? The result looks as expected. I do
not have (easy) access to SPSS, so I cannot check exactly that I got what I
should have.
Thanks,
G??ran
And, I'm using R-2.0.1 on Debian testing (from source).
2005 Mar 24
1
Books on survival analysis and R/S
I will be giving a course in survival analysis using R (of course!) for
people who know nothing about the subject (including R), but know basic
statistics. I'm looking for a suitable course book. Therneau & Grambsch
(2000) is an excellent book, but too much for this course. I need somthing
more elementary.
I have a vague memory saying that such books exist, but I cannot find any
for the
2003 Jun 16
0
new package: eha
A few days ago I uploaded to CRAN a new package called 'eha', which
stands for 'Event History Analysis'. Its main focus is on proportional
hazards modeling in survival analysis, and in that respect eha can
be regarded as a complement and an extension to the 'survival'
package. In fact eha requires survival. Eha contains three functions
for proportional hazards
2003 Jun 16
0
new package: eha
A few days ago I uploaded to CRAN a new package called 'eha', which
stands for 'Event History Analysis'. Its main focus is on proportional
hazards modeling in survival analysis, and in that respect eha can
be regarded as a complement and an extension to the 'survival'
package. In fact eha requires survival. Eha contains three functions
for proportional hazards
1999 Dec 07
4
Finding indices with a certain property
I want the indices i for which x[i] < 0 (say):
> x <- c(1, -1, 3, 3, -2)
> where.negative(x)
[1] 2 5
Surely where.negative is something simple, but how?
G?ran
--------------------------------------------------------------
G?ran Brostr?m
Department of Statistics tel: +46 90 786-5223
Ume? University fax: +46 90 786-6614
S-90187 Ume?, Sweden
2005 Jan 25
2
tapply and names
I have a data frame containing children, with variables 'year' = birth
year, and 'm.id' = mother's id number. Let's assume that all the births of
each mother is represented in the data frame.
Now I want to create a subset of this data frame containing all children,
whose mother's first birth was in the year 1816 or later. This seems to
work:
mid <-
2003 Dec 18
1
Manova
Dear R-helpers,
In a data set I got from a medical doctor there are six treatment groups
and (about) 5 bivariate responses in each group. Using 'manova', it is
easy to see significant differences in treatment effects, but the doctor
is more interested in the correlation between the two responses (within
groups). I'm willing to assume a common value over groups, and one way
of
2004 Sep 19
1
Namespace problem
Now I try to add some C and Fortan code to my package, so the NAMESPACE
file is
useDynLib(eha)
importFrom(survival, Surv)
export(mlreg.fit, risksets)
but I get
.....
* checking R files for library.dynam ... OK
* checking S3 generic/method consistency ... WARNING
Error in .try_quietly({ : Error in library(package, lib.loc = lib.loc, character.only = TRUE, verbose = FALSE) :
2004 Oct 07
1
sample suggestion
I have been bitten by what is clearly described on the help page for
'sample', namely sampling from a population of size one. I agree that it is
convenient to have an exception if 'length(x) == 1', but my suggestion is
to enforce the exception only if 'x' is numeric. In any case, if x is not
numeric and of length 1, all you get is an error message.
I would like
2005 Jan 03
1
row ("FORTRAN") order?
Reading about 'R_max_col' in "Writing R extensions", Version
2.1.0,(2005-01-03), I find:
"Given the nr by nc matrix matrix in row ("FORTRAN") order, ..."
Looks like a contradiction to me, since FORTRAN stores matrices
columnwise. So is this a documentation bug?
--
G?ran Brostr?m tel: +46 90 786 5223
Department of Statistics
2004 Apr 02
1
Underscore and ESS
This is a question that I should have sent to 'ess-help', but I
take my chances...
In 'NEWS' (1.9.0) I read the good news
o Underscore '_' is now allowed in syntactically valid names, and
make.names() no longer changes underscores. Very old code
...
but when I try it in emacs (ESS 5.1.24), my '_' are changed to ' <- '!
What can I do?
2005 Aug 19
2
Handling dates
I have a problem with some functions handling dates, in packages 'date' and
'survival' (they seem to be identical). For instance, from the documentation,
--------------------
mdy.date {survival}
R Documentation
Convert to Julian Dates
Description
Given a month, day, and year, returns the number of days since January 1, 1960.
Usage
mdy.date(month, day, year, nineteen = TRUE,
2004 Jun 09
1
1.9.1-alpha & tty
I have two versions of R on my Debian testing: R-1.9.0 (precompiled) and
R-1.9.1-alpha of 2004-06-07 (built on my system). In the latter, I get
> system("emacs sim.R &")
> emacs: standard input is not a tty
while with R-1.9.0 it works as expected. I have absolutely no idea about
what's going on, so I could use some help. Anyone?
Thanks,
G?ran
--
G?ran Brostr?m
2004 Dec 30
1
optim/vmmin and R_alloc
I am calling 'vmmin' several times from a C function (which is called via
.C). It works very well, except for memory consumption. The cause is that
vmmin allocates memory via R_alloc, and this memory is not freed as vmmin
exits. Instead all the allocated memory is freed on return of the .C
call.
In one application, I have 2000 functions of 500 variables each to
minimize. In each call to
2005 Aug 20
1
Different gcc versions
I have both gcc-3.4 and gcc-4.0(.1) installed on my system
(debian-amd64 unstable), with links /usr/bin/gcc, g77, etc. to
the 3.4 versions. When I build R, the 3.4 version is picked up,
which is fine.
However, when I 'install.packages("xyz")', R uses gcc-4.0 and
gfortran-4.0! Should I accept this or do something about it?
And if so, what? Of course, removing all 4.0 versions