Re: [Rd] CRAN Task Views: ctv package available

2005-03-12 Thread Paul Gilbert
Dirk Eddelbuettel wrote:
Paul,
On 11 March 2005 at 17:55, Paul Gilbert wrote:
| Achim
| ...
| Other things that might be useful are various programming views, like
| a Matlab view, and an SPSS view.
|  
|  
|  I'm not sure what you have in mind here, because I would think that this
|  amounts more to using the language in general than using certain
|  packages. 
| ...
| 
| I guess I didn't see that this should only be about packages. It seems 
| you could put just about anything in the HTML page. A table like
| 
| MatlabR translation
| ---
|  eye(n)  diag(1,n)
|=-
|   etc
| 
| might be useful to a lot of people converting from Matlab. I may have 
| the above wrong, but I do have a good start on a table like this in a 
| sed script somewhere, so if anyone volunteers to be the maintainer I can 
| help a bit.

Recall that (at least some of) this exists already in Robin's page at
   http://cran.us.r-project.org/doc/contrib/R-and-octave-2.txt
(using the .us mirror here, adapt at will)
Dirk
Dirk
Thanks for point this out. It is certainly a better starting point than 
anything I have related to Matlab. I think this also underlines the 
bigger problem too. There is actually a very large amount of R 
documentation, but it is often hard for someone with a particular 
background to know were to start. Even though I now know this document 
exists, it seems a bit difficult to actually find it from CRAN. If I 
Google R and Octave I get it immediately, but it doesn't show up with 
R and Matlab. It seems to me that the view idea may provide a very 
good mechanism that will work even when you really don't know where to 
start. (BTW, this is an example, I don't really know much about Matlab.)

Paul
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RE: [Rd] CRAN Task Views: ctv package available

2005-03-12 Thread Achim Zeileis
On Sat, 12 Mar 2005, Gorjanc Gregor wrote:

 Hello!

 First of all congratulations for a nice approach to present R fields in
 more coherent way. When I started with R I was often frustrated with long
 list of packages, similarities between them, ... If I would take a slow
 approach (one thing at a time) things would be easier from the start, but
 usually one wants to know what a new program is capable of. This is esential
 if one wants really to switch to R.

 About ctv:
  Paul Gilbert wrote:
  For my own purposes the Econometrics view is just fine, but I do
  sometimes get questions about dse from people in fields that are
  different enough that they might not even know to look in
  Econometrics. A time series view might be useful even if it only
  said see also ... .  Another approach to this might be to have
  sub-views so, for example, Econometrics and Control theory could
  both point to Time series.

  Achim Zeileis responded:
  Yes, that is, of course, an obvious idea but it requires more
  coordination between the different views, hence we've decided not to
  support hierarchically ordered views.
  Re: ControlTheory. If someone would raise his hand and provide a view
  for that, it would be great. It could, of course, link to the
  Econometrics view (and vice versa) but they wouldn't have a formally
  defined subset in a TimeSeries view.

 I think that there is a lot of fields where this views cover the same
 stuff. When I first read about ctv I thought it will be implemented more
 in somewhat hierarchical or kind of multiple way, since for example
 linear models come usefull in many different fields and some people might
 never look under Econometrics view as Paul stated.

 I realize that hierarchical/multiple is far from easy and I do not have
 any clear idea how to implement it, but it would probably easier to maintain
 larger set of views in such a way and it would be easier to generate new
 ones.

Yes, the implementation would not be the main problem, but the
maintenance. For hierarchical views, there needs to be much more
communication and coordination between the maintainers of related views.
My idea was to keep the work low for the maintainers...hoping that there
would be more people volunteering to maintain a view related to their
field of research or application.
Z

 --
 Lep pozdrav / With regards,
 Gregor GORJANC

 ---
 University of Ljubljana
 Biotechnical FacultyURI: http://www.bfro.uni-lj.si/MR/ggorjan
 Zootechnical Department mail: gregor.gorjanc at bfro.uni-lj.si
 Groblje 3   tel: +386 (0)1 72 17 861
 SI-1230 Domzale fax: +386 (0)1 72 17 888
 Slovenia, Europe

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Re: [Rd] CRAN Task Views: ctv package available

2005-03-11 Thread Paul Gilbert
If I understand this correctly, I think it is a great idea. Just to be 
sure I do understand, would you expect there might also be a Time 
Series view, which would probably overlap some with the Econometrics 
view?

Paul Gilbert
Achim Zeileis wrote:
Dear developeRs,
in the last month I mentioned in several discussions on R-help that Kurt
and I were working on tools for CRAN Task Views which should help to
structure the fast-growing list of packages on CRAN.
Now the first version of a package called ctv (for CRAN Task Views) is
available from CRAN and also two frist drafts for such views can be seen
at 
  http://CRAN.R-project.org/src/contrib/Views/

When you install the ctv package you can also query this from within R
via:
  CRAN.views()
  install.views(Econometrics, lib = /path/to/foo)
New views can be easily written in an XML-based format from which we can
generate the HTML information displayed on the Web and also the
information needed for querying the views via CRAN.views(). The package
contains a short vignette that explains how to write new task views.
Feedback on the package would be very welcome! Furthermore, if you want
to write and maintain a new task view for a certain topic, that would be
great! Just drop me an e-mail with your suggestion.
Best wishes from Vienna,
Z
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Re: [Rd] CRAN Task Views: ctv package available

2005-03-11 Thread Achim Zeileis
Paul,

thanks for the feedback.

 If I understand this correctly, I think it is a great idea. Just to be
 sure I do understand, would you expect there might also be a Time 
 Series view, which would probably overlap some with the
 Econometrics view?

In principle, the presence of an Econometrics view does not preclude
the existence of a TimeSeries or Finance view (I already talked with
Dirk privately about the latter). Even if the overlap in packages would
be substantial, there could be value added via the information on the
corresponding HTML page. 
Currently, my personal opinion would be that we don't need a separate
TimeSeries view and that we should extend the information on the
Econometrics page instead. But it's not unlikely that I could be
convinced otherwise :-) So if you've got suggestions in that direction,
just let me know.

Best,
Z

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Re: [Rd] CRAN Task Views: ctv package available

2005-03-11 Thread Paul Gilbert
Achim Zeileis wrote:
Paul,
thanks for the feedback.

If I understand this correctly, I think it is a great idea. Just to be
sure I do understand, would you expect there might also be a Time 
Series view, which would probably overlap some with the
Econometrics view?

In principle, the presence of an Econometrics view does not preclude
the existence of a TimeSeries or Finance view (I already talked with
Dirk privately about the latter). Even if the overlap in packages would
be substantial, there could be value added via the information on the
corresponding HTML page. 
Currently, my personal opinion would be that we don't need a separate
TimeSeries view and that we should extend the information on the
Econometrics page instead. But it's not unlikely that I could be
convinced otherwise :-) So if you've got suggestions in that direction,
just let me know.
Achim
For my own purposes the Econometrics view is just fine, but I do 
sometimes get questions about dse from people in fields that are 
different enough that they might not even know to look in 
Econometrics. A time series view might be useful even if it only said 
see also ... .  Another approach to this might be to have sub-views so, 
for example, Econometrics and Control theory could both point to 
Time series.

Other things that might be useful are various programming views, like a 
Matlab view, and an SPSS view.

I feel uncomfortable suggesting things that sound more like work than 
feedback, because I am not about to offer to maintain anything. I have 
too much on my plate right now. But in this regard it would be nice to 
draw on more people contributing smaller pieces. Have you considered 
something like a wiki?

Best,
Paul
Best,
Z
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Re: [Rd] CRAN Task Views: ctv package available

2005-03-11 Thread Paul Gilbert
Achim
...
Other things that might be useful are various programming views, like
a Matlab view, and an SPSS view.

I'm not sure what you have in mind here, because I would think that this
amounts more to using the language in general than using certain
packages. 
...
I guess I didn't see that this should only be about packages. It seems 
you could put just about anything in the HTML page. A table like

   MatlabR translation
   ---
eye(n)  diag(1,n)
  =-
 etc
might be useful to a lot of people converting from Matlab. I may have 
the above wrong, but I do have a good start on a table like this in a 
sed script somewhere, so if anyone volunteers to be the maintainer I can 
help a bit.

Paul
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Re: [Rd] CRAN Task Views: ctv package available

2005-03-11 Thread Dirk Eddelbuettel

Paul,

On 11 March 2005 at 17:55, Paul Gilbert wrote:
| Achim
| ...
| Other things that might be useful are various programming views, like
| a Matlab view, and an SPSS view.
|  
|  
|  I'm not sure what you have in mind here, because I would think that this
|  amounts more to using the language in general than using certain
|  packages. 
| ...
| 
| I guess I didn't see that this should only be about packages. It seems 
| you could put just about anything in the HTML page. A table like
| 
| MatlabR translation
| ---
|  eye(n)  diag(1,n)
|=-
|   etc
| 
| might be useful to a lot of people converting from Matlab. I may have 
| the above wrong, but I do have a good start on a table like this in a 
| sed script somewhere, so if anyone volunteers to be the maintainer I can 
| help a bit.

Recall that (at least some of) this exists already in Robin's page at
   http://cran.us.r-project.org/doc/contrib/R-and-octave-2.txt
(using the .us mirror here, adapt at will)

Dirk

-- 
Better to have an approximate answer to the right question than a precise 
answer to the wrong question.  --  John Tukey as quoted by John Chambers

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