One (delayed) follow-up question on this:
We are buying Dell workstations with 64-bit single-core Xeon processors,
and we could add a second processor for not much more. Is it possible to
make a generalized statement as to what kind of performance improvement
we would see with a single vs. dual pr
"Thomas Lumley" <[EMAIL PROTECTED]> wrote in message
news:[EMAIL PROTECTED]
> But why would you ever want to write either .Machine$sizeof.double * N.COL
> * N.ROW or 8 * N.COL * N.ROW?
To troubleshoot a problem a post doc is having with a large matrix. I was
trying to understand the size of the n
On Tue, 18 Oct 2005, Earl F. Glynn wrote:
> "Thomas Lumley" <[EMAIL PROTECTED]> wrote in message
> news:[EMAIL PROTECTED]
>> On Tue, 18 Oct 2005, Earl F. Glynn wrote:
>>
>>> Whis is there a .Machine$sizeof.longdouble but no
> .Machine$sizeof.double?
>>>
>>
>> sizeof(double) is always 8 and sizeof(
"Thomas Lumley" <[EMAIL PROTECTED]> wrote in message
news:[EMAIL PROTECTED]
> On Tue, 18 Oct 2005, Earl F. Glynn wrote:
>
> > Whis is there a .Machine$sizeof.longdouble but no
.Machine$sizeof.double?
> >
>
> sizeof(double) is always 8 and sizeof(int) is always 4, because R requires
> the IEEE/IEC s
Yup, I like that idea too though it seems like it should be done by
routing through the connection interface. It would be interesting to
see how much the current stdout relies on information that wouldn't
necessarily be available in an event stream. Of course, if you're
going to go this rou
Technically, "Jun Yan, based on work and documentation most likely by
Brian Ripley, with Tony prodding Jun". Though I'm sure even that
would be corrected.
Sorry, no clue, as I'm not using R nor Linux at work these days. I'm
sure someone else knows.
On 10/18/05, Kasper Daniel Hansen <[EMAIL PRO
On Tue, 18 Oct 2005, Earl F. Glynn wrote:
> Whis is there a .Machine$sizeof.longdouble but no .Machine$sizeof.double?
>
sizeof(double) is always 8 and sizeof(int) is always 4, because R requires
the IEEE/IEC standard arithmetic types. R will not compile with any other
sizes.
-thomas
Hi
We have been cross-compiling windows packages under Linux using the
excellent Makefile and instructions by Tony Rossini and Jun Yan.
Specifically we have been cross-compiling c++ code and it used to work.
Now the minGW tools located at www.stats.ox.ac.uk/pub/Rtools have
changed from vers
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Philippe Grosjean wrote:
> Hello Marc and the others (and the User!2006 organizing commitee),
>
> I answer to Marc's email, because I think it is the most constructive
> one. I am a little bit dissapointed that the discussion about R GUIs,
> whate
Hello Marc and the others (and the User!2006 organizing commitee),
I answer to Marc's email, because I think it is the most constructive
one. I am a little bit dissapointed that the discussion about R GUIs,
whatever the initial subject, inevitably shifts to an endless discussion
about which gra
Hi,
I'm trying to learn how to use the tryCatch condition system and am
confused about the behavior when I set the call arg of a
simpleCondition.
I want to catch an error if it meets a certain criteria and otherwise
reraise it. I want the error message to indicate the function in
which the error
Whis is there a .Machine$sizeof.longdouble but no .Machine$sizeof.double?
(.Machine$double.digits + .Machine$double.exponent) / 8
could be used for .Machine$sizeof.double, I guess, but why define the
structure of doubles in bits, and all other sizeof's in bytes (e.g.,
.Machine$size.long)?
efg
Sto
On 10/18/2005 9:32 AM, [EMAIL PROTECTED] wrote:
> Dear Duncan,
>
> you are right. In both R 2.2.0 and 2.1.1 you get the same result. What has
> actually changed is the following:
> In R 2.1.1
>> mat[1, , drop = FALSE][1]
> r1
> 1
>
> While in R 2.2.0
>> mat[1, , drop = FALSE][1]
> [1] 1
I do
Dear Duncan,
you are right. In both R 2.2.0 and 2.1.1 you get the same result. What has
actually changed is the following:
In R 2.1.1
> mat[1, , drop = FALSE][1]
r1
1
While in R 2.2.0
> mat[1, , drop = FALSE][1]
[1] 1
In both cases
> mat[1, , drop = FALSE]
c1 c2 c3
r1 1 4 7
I would st
On 10/18/2005 8:51 AM, Thomas Friedrichsmeier wrote:
>> I'll volunteer to do your testing on Windows, provided nobody suggests a
>> way to do what you want without your patches. That is, if there's a way
>> for a custom front-end to separate the streams of text coming to
>> ptr_R_WriteConsole thro
> I'll volunteer to do your testing on Windows, provided nobody suggests a
> way to do what you want without your patches. That is, if there's a way
> for a custom front-end to separate the streams of text coming to
> ptr_R_WriteConsole through REvprintf from that coming through Rvprintf,
> then y
I fully support Duncan M (though it's painless for me).
What I wanted to do, and explored, when I was visiting Peter D in
Copenhagen nearly 2 years ago, was to XML-ize the output stream, so
that I could mark it up. From that, it would be reasonably simple to
parse output (provided you marked it u
[EMAIL PROTECTED] wrote:
> Full_Name: Stefan Albrecht
> Version: 2.2.0
> OS: Windows XP
> Submission from: (NULL) (194.127.2.74)
>
>
> Dear all,
>
> in the new R 2.2.0, the matrix indexing has been changed.
I just tried your code in R 2.0.1 and 2.1.1, and got the same output as
you did. Which
I'll volunteer to do your testing on Windows, provided nobody suggests a
way to do what you want without your patches. That is, if there's a way
for a custom front-end to separate the streams of text coming to
ptr_R_WriteConsole through REvprintf from that coming through Rvprintf,
then your ch
Full_Name: Stefan Albrecht
Version: 2.2.0
OS: Windows XP
Submission from: (NULL) (194.127.2.74)
Dear all,
in the new R 2.2.0, the matrix indexing has been changed. In my opinion, this
leads to an inconsistency when indexing one-row matrices.
Take
> (mat <- matrix(1:9, nrow = 3, dimnames = list(p
Prof Brian Ripley wrote:
> I think you are confusing us: xyplot is an S3 generic with no 'data'
> argument. It is xyplot.formula that you want to add dispatch on its
> 'data' argument. I don't really see why you want to mix S3 and S4
> systems, but you could make xyplot.formula an S3 or S4 gene
> I second the point about not having made a case, and also that (from the
> part deleted below) about needing to understand the internals before
> proposing changes.
I'll try to make the case below point d). I fully accept rejection of the more
daring part of my proposal, but the part about ptr_
> "GS" == Gavin Simpson <[EMAIL PROTECTED]>
> on Mon, 10 Oct 2005 17:29:42 +0100 writes:
GS> Hi,
GS> Following the Writing R Extensions manual, I created a method for the
GS> cor function. As cor is not a generic, I followed the advice of section
GS> 6.1 of the same man
> What posting (I see nothing included)? I guess you mean
> https://stat.ethz.ch/pipermail/r-devel/2005-September/034811.html
Sorry, I thought I would add correct References and In-Reply-To
headers, but it was possible using gmail. And then I forgot to change
the wording...
> Thank you. Please n
On Tue, 18 Oct 2005, François-Xavier Coudert wrote:
I recently saw this posting in the r-devel list
What posting (I see nothing included)? I guess you mean
https://stat.ethz.ch/pipermail/r-devel/2005-September/034811.html
?
(while looking for something completely unrelated) and just wanted
Hi,
I recently saw this posting in the r-devel list (while looking for
something completely unrelated) and just wanted to say: there are
gfortran binaries available for Windows/MinGW (in fact, I do build
them monthly just so that Windows users can use the compiler). The
exact adress (http://quatra
On Mon, 17 Oct 2005, Luke Tierney wrote:
> On Mon, 17 Oct 2005, Thomas Friedrichsmeier wrote:
>
>>> I am strongly opposed to locking in anything from the C internals of
>>> error handling that is not already part of the API. This is all very
>>> much subject to change and anything along the lines
After the discussion a while back about how sort inconsistently handles
attributes such as dim's, I have taken a closer look and found yet more
anomalies.
That suggested trying out the principle that sort() should preserve only
names (and sort those). Now, sort(partial=) was preserving names a
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