gretl 1.7.6rc1
by Allin Cottrell
Current gretl CVS and the Windows snapshot at
http://ricardo.ecn.wfu.edu/pub/gretl/gretl_install.exe
contain release candidate 1 for gretl 1.7.6.
Please note that this version involves a backward-incompatible
change with respect to gretl 1.7.5 and earlier, affecting
user-defined functions that (a) take a named list of variables as
an argument and (b) do things with the list-member variables by
means of a "foreach" loop on the list.
I won't go into the rationale for this change here. Anyone who
wants the details may look at the proceedings on the gretl-devel
list for July, which were mostly taken up with this issue:
http://lists.wfu.edu/pipermail/gretl-devel/2008-July/thread.html
There's also a brief discussion in the chapter of the User's Guide
that deals with user-defined functions. But here's the bottom
line for users:
* If you want to "get hold of" a list-member variable in the
context noted above, you have to use the syntax listname.varname,
where listname is the name of the list in question and varname is
the name of the list member. (This is required only if you're
working with a list that was supplied as a function argument.)
Trivial example: inside a function, creating new variables which
are the cubes of the members of an original list, xlist, where
xlist is an argument to the function.
Old style:
loop foreach i xlist
$i_3 = $i^3
endloop
New style:
loop foreach i xlist
$i_3 = (xlist.$i)^3
endloop
In the new scheme, "$i" gets the name of the list-member variable
alright, but the variable is not "visible" under that name within
the function. So on the right-hand side of the expression that
creates the cubes, we need "(xlist.$i)^3". (Well, actually the
parentheses are not required, but wearing your seatbelt is in
general a good idea.)
Although this may affect quite a large number of existing
functions, we believe the effects are localized and the update
should be trivial. If anyone has a function for which the update
is _not_ trivial, please let us know.
Allin Cottrell.
13 years, 11 months
Problems with Accented Filenames (Windows XP & Mac OS/X)
by Henrique
Hi!
I sent a mail for our gretl list speaking about my problems with
accented filenames. Well, I hadn't solved my problem yet. Because of this I
try to use a PC (with Windows XP) computer to avoid these problems. But
another problem had arised!
I going to describe the problem to you with details:
(1) I opened gretl (version 1.7.8cvs build date 2008-09-22)
(2) I opened the datafile called "data9-7.gdt" (from the Ramanathan's
examples)
(3) I saved these file with another name: "Acentuação.gdt"
(4) I closed gretl
(5) I opened gretl again clicking in "Acentuação.gdt" twice
(6) I deleted the series 9, 10 and 11 (named SPRING, SUMMER and FALL,
respectively)
(7) I saved the database with these changes and closed gretl*
*After the "step 7", described above, I`d noticed that a new file, called
"Acentuação.gdt~" had appeared in the same folder of the file
"Acentuação.gdt". Before proceeding I had deleted this new file
("Acentuação.gdt~").
(8) I opened gretl again with a double click in the file "Acentuação.gdt"
(9) I opened the series called PRICE and choose the option "graph"
(10) I saved the graph as a session icon
(11) I closed the graph and tried to save the session with the name
"Acentuação Session.gretl". In that point the following message appears:
"zip error: File not found or no read permission (file '.Acentuação Session'
was not found)"
(12) After that message I tried to save the session with the name
"Acentuacao Session.gretl" (without accented characters). The software
(gretl) saved the session with success with the name "Acentuacao
Session.gretl"
(13) I closed gretl and when I'd tried to open the session file called
"Acentuacao Session.gretl"the following message appears:
"No such file or directory"
What's wrong? Am I doing any mistake? Any help are welcome!
Regards,
Henrique Andrade
PS.: I know I'm bugging you guys, but it isn't my intention! Sorry! :(
15 years, 5 months
Re: cannot forecast with Nonlinear Least Squares
by Allin Cottrell
On Fri, 26 Dec 2008, John Paravantis wrote:
> How about adding the option to draw asymptotic confidence
> intervals when a nonlinear model is NOT autoregressive?
OK, added in CVS and Windows snapshot.
Allin.
15 years, 9 months
Setting range for a year.
by Ivan Sopov
Hello, how can I set range for a specific year from the console when the
data is about 5-day working week? Can it be avoiding stating explicitly
starting and ending days? And if so, can it handle properly missing days
(for example extraodinary non-trading days on the stock market)?
I want to use it in the loop context to build a one model per each year.
Thanks, Ivan Sopov.
15 years, 9 months
SUR models
by Mariusz Doszyn
Hello....
Why after estimating SUR models such measures as, for example, adjusted determination ratio are not present in the output? I know it's easy to compute but ... maybe could you tell me why is it so....
With regard,
Mariusz
Poland
15 years, 9 months
Ralph M Rodriguez/PO/KAIPERM is out of the office.
by Ralph.M.Rodriguez＠kp.org
I will be out of the office starting 12/22/2008 and will not return until
01/05/2009.
I will be out of the office on PTO from Dec 22 through Jan 4, returning to
the office January 5. If you have any questions regarding Construction
Economics and/or Cost Model, please email me and/or contact Bradley A Njus
at 510 625 4595. If this an emergency situation and you need to contact
me, please call me at 510 421 3863.
Thanks and I hope you have a great holiday season with loved ones.
Meery Christmas and Happy New Year,
Ralph
Thanks.
Ralph
15 years, 9 months
Model Presentation Layout
by Yuniarto Hadiwibowo
I installed Gretl CVS on two Windows XP computers.
In one computer I get new model presentation layout (2 columns), but in the other one, which already has Gretl, I get old layout (one column).
I tried to uninstall previous version first, but I still get the old layout. Is it only the layout or something else is also different?
Thanks.
Yuniarto Hadiwibowo
15 years, 9 months
tests in gretl
by Giovanni Madaro
How can i do these tests in gretl over a panel data regression?
1.. Anderson instrument irrilevance test;
2.. Stock and Yogo weak instruments test;
3.. Hausman test for OLS unbiasedness.
Thanks,
GM
15 years, 9 months
