R help - Oct 2005 - TRAMO-SEATS confusion?

Dear R People:

When looking at the previous postings regarding TRAMO-SEATS,
I am somewhat puzzled.

Is it true that we CANNOT replicate TRAMO-SEATS because of 
licensing or ownership issues, please?

If not, would anyone be interested in an R version of it, please?

Thanks,
Sincerely,
Erin Hodgess
Associate Professor
Department of Computer and Mathematical Sciences
University of Houston - Downtown
mailto: hodgess at gator.uhd.edu

Erin,

On 15 October 2005 at 15:53, Erin Hodgess wrote:
| When looking at the previous postings regarding TRAMO-SEATS,
| I am somewhat puzzled.
| 
| Is it true that we CANNOT replicate TRAMO-SEATS because of 
| licensing or ownership issues, please?

Could you please 

i)  define 'replicate', and 

ii) cite any licenses to back up this claim, or simply show us what you
    find so confusing.

I suspect that you are misinterpreting this, and that tramo-seats is indeed
"simply" closed-source software that you can get re-distributed in
binary
form (e.g. from the gretl website, see below), but not in source. 

| If not, would anyone be interested in an R version of it, please?

A couple of years ago I toyed with both the US Census' X12-ARIMA procedure
and its tramo-seats alternative by Maravall et al.  Given how atrociously
'1960s' the X12-ARIMA interface is, I toyed with building an R frontend
given
that you get the Fortran code to X12-ARIMA straight from the Census site .
But then something else came up and I never pursued this ...

The closest I know to using x12 and/or tramo-seats from somewhat saner and
more modern software is via Allin Cottrell's gretl (cf http://gretl.sf.net).
And per my suggestion a few years back, Allin even hacked a 'gretl to R'
interface [ via mucking with ~/.Rprofile which isn't pretty but that is
another story ... ]

Hope this helps,  Dirk

| 
| Thanks,
| Sincerely,
| Erin Hodgess
| Associate Professor
| Department of Computer and Mathematical Sciences
| University of Houston - Downtown
| mailto: hodgess at gator.uhd.edu
| 
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-- 
Statistics: The (futile) attempt to offer certainty about uncertainty.
         -- Roger Koenker, 'Dictionary of Received Ideas of Statistics'

Hi,

For what its worth I had to hack some horrendous old
FORTRAN which I could not come close to understanding.
The main issue was to allow dynmically allocated arrays.
What I did was to run it through f2c to produce C++
code. Then I verified that it still worked. After that I replaced
the pointers with a vector class with optional bounds checking with an 
overloaded [] operator so that all the old code would still compile.
Then I just checked out all the bounds violations until everything
worked and I was done.

     Dave

-- 
David A. Fournier
P.O. Box 2040,
Sidney, B.C. V8l 3s3
Canada
http://otter-rsch.com


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