Re: [R] Hunting for snow...

From: Brian Lunergan <>
Date: Sun 09 Jul 2006 - 23:34:25 EST

Uwe Ligges wrote:

> Brian Lunergan wrote:

>> Prof Brian Ripley wrote:
>>> On Sat, 8 Jul 2006, Brian Lunergan wrote:
>>>> Evening folks:
>>>> I did an install.views of finance and econometrics and between the
>>>> two of
>>>> them R reported 'FracSim', 'RDCOMClient', 'snow', 'VGAM', and
>>>> 'segmented'
>>>> as missing dependencies. Now, I've managed to hunt down what appear
>>>> to be
>>>> current zip file copies of all of the packages but 'snow'. Is there a
>>>> windows edition of the package out there someplace that will get
>>>> along with
>>>> R v2.3.1 and if so, how do I find it?
>>>> Please and thanks...
>>> PLEASE read the README:
>>> and see the check summary at
>>> snow runs distributed R tasks across hosts: it has three modes and
>>> prefers PVM and MPI if packages rpvm or Rmpi are available (which
>>> they are not for Windows). As a result only some of its
>>> functionality can be used on Windows, and anyone who is going to get
>>> involved at that level of programming will very easily install the
>>> package from the sources.
>> Let me see if I understand this correctly. Something in the finance
>> task view would seem to consider snow a dependency; however, the
>> package in question has dragged it along for the ride into Windows,
>> crippling its usefulness.

>> Problem and a question. Having checked the file on the UofT CRAN
>> mirror that lists dependencies for the available files snow only
>> appears attached to three of them, none of which are listed as part
>> the finance view or anything I already have on my system. What is R
>> seeing these as a dependency for then? Perhaps the view maintainers
>> can suggest something? If it is not available for windows and is only
>> partially functional there can it be safely ignored as a dependency?

>> One other puzzle resulting from this. The check summary suggested
>> problems with 'FracSim', 'RDCOMClient', 'VGAM', and 'segmented' as
>> windows packages but yet the versions I found seemed to install
>> without complaint onto my
> Where did you find them? At least not in their current versions on the 
> official repository on CRAN master for R-2.3.x, I hope.

These are the versions I found and the locations. Other than perhaps segmented all seem to be positioned as compatible with v2.3.x, but I own that I could be incorrect in my assessment of the situation.

>> system. Three gave back the successful unpack msg. VGAM did not, but
>> several of the demo scripts ran without complaint so I am assuming it
>> is comfortable with v2.3.1 on a windows system. Later versions of the
>> four than were tested in the check summary, perhaps?

> The check summary is recent. I can only imagine that you found earlier 
> versions...

Brian Lunergan
Nepean, Ontario

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