Hi all,
I've been working on improving R's optim() command, which does general purpose
unconstrained optimization. Obviously, this is important for many statistics
computations, such as maximum likelihood, method of moments, etc. I have
focused my efforts of the BFGS method, mainly because it be
On Fri, 3 Aug 2007, mfrumin wrote:
>
> Dear princely R developers to whom I owe so much of my daily productivity
> level,
>
> I am wondering how indexing by row and column names are implemented. That
> is, when I have a matrix with named rows (or columns) and I then index into
> that matrix using
Dear princely R developers to whom I owe so much of my daily productivity
level,
I am wondering how indexing by row and column names are implemented. That
is, when I have a matrix with named rows (or columns) and I then index into
that matrix using the string names (rather than integers), how do
Hi,
>> Beyond that, there may be a few more things that can be done to make R run
>> "stupidly fast" on ps3 or IBM Cell blades.
>>
>>
>
> Wouldn't the right way to go here be to make it use the PS3 graphics
> hardware, in a http://www.gpgpu.org/ kind of way? Or are the Cell
> processors o
[EMAIL PROTECTED] wrote:
> Beyond that, there may be a few more things that can be done to make R run
> "stupidly fast" on ps3 or IBM Cell blades.
>
Wouldn't the right way to go here be to make it use the PS3 graphics
hardware, in a http://www.gpgpu.org/ kind of way? Or are the Cell
process
On 8/3/07, Paul Gilbert <[EMAIL PROTECTED]> wrote:
> Doug
> Does it still play DVDs?
> (My wife keeps telling me that academics have to do all their serious
> work in the summer.)
The way that you install Linux on a PS3 it becomes a dual-boot
machine. You have to reboot to the original operatin
I've been working off-and-on for a few months on devising some patches to
R to make it much happier with a Cell processor; to be honest I've not
had much time to work at it lately.
Douglas is right that it is mostly a PPC64 sort of architecture; taking
real advantage of the hardware is going
P.S. A site with instructions for installing Ubuntu on the PS3 is
psubuntu.com or google "PS3 Ubuntu" to get the community pages
documentation.
It is a good idea to have an Ethernet connection so that once you
install from the CD you can upgrade the packages. The kernel on the
installation CD ima
On 8/1/07, Marc Schwartz <[EMAIL PROTECTED]> wrote:
> On Wed, 2007-08-01 at 11:13 -0500, Douglas Bates wrote:
> > Has anyone installed Linux on a Sony Playstation 3 and compiled R for it?
> Doug,
>
> I don't have any personal experience with both Linux and R on the PS3,
> but do know folks who hav
Dear DevelopeRs
Several functions in a package of mine have complex returned objects
that are lists within the returned list. I wish to document each of the
components of these sublists.
If I do this within a \value{} section and nest \item within an existing
\item, I get indented R-help sections
Ben Bolker wrote:
> x = readLines("http://developer.r-project.org/R.svnlog.2007";)
> rx = x[grep("^r",x)]
> who = gsub(" ","",sapply(strsplit(rx,"\\|"),"[",2))
> twho = table(who)
> twho["ripley"]/sum(twho)
>
> 74% of all commits!
And 99% of all 'This is not a bug/You have not read the postin
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