Cost function estimation--system of equations
by Carlos Elias
Dear All,
It is my first time using Gretl, I love it. I am trying to estimate a cost
function system of equations (Jorgensen 1986). I am imposing restrictions
on the parameters to impose cost exhaustion and homegeneity conditions. I
am using a cross sectional dataset of electric power plants in the US--I am
researching the impact on cost of generation of availability of water and
the selection of cooling systems.
I would really appreciate it if you can look at my Gretl instructions and
tell me if I am making any mistakes--when I ran the model I get no results.
These are the instructions:
**************************************************
system
equation S_Dep l_P_Dep l_P_labor l_Y
equation l_Tot_cost l_P_Dep l_P_labor l_Y sq_l_P_Dep l_Dep_labor l_S_labor
l_Dep_Y l_labor_Y sq_l_Y
end system
restrict
b[1,1] = b[2,2]
b[1,2] = b[2,5]
b[1,3] = b[2,6]
b[1,4] = b[2,8]
b[2,2] + b[2,3] = 1
b[2,8] + b[2,9] = 0
b[2,5] + b[2,6] = 0
b[2,6] + b[2,7] = 0
end restrict
estimate
********************************************************************************************
Cheers and thanks,
Carlos
13 years, 8 months
Exact method of likelyhood
by Александр Рогальский
Good afternoon.
I am developing a causal econometric model according to the concept of аuthenticity modeling
Model is as follows:
Y(t)=SUM[a0*Y(t-s)] + SUM[a6*X6,(t-s)] + SUM[a23*X23,(t-s)]
(1->4) (0->2) (0->1)
The right side of this equation has lag dependent varibles, lag independent variables and independent variables.
To estimate parameters I use the exact method of likelyhood.
But the residuals are not normally distributed.
May I use this method to estimate the parameters (or I should use another methods)?
If the residuals are not normal, will be this model suitable for forecasting?
Thanks in advance
Alexander
13 years, 8 months
translation (lost in)
by artur bala
Dear Allin,
Getting through the .po file (I'm testing a new translation), I've
encountered the following entry that sounds a little bit strange (as
long as gretl's menu doesn't offer such an option):
/ Data set is not recognized as a panel.\n
Please use \"Sample/Set frequency, startobs\"./
I checked the po.file in 3 other languages and found an identical
translation of that. What does it stand for?
cheers, :-)
artur
--
*************************************
Artur BALA
Development Economist, Consultant
Phone: +216 24 71 00 80
E-mail: artur.bala.tn(a)gmail.com
skype: artur.bala.tn
*************************************
13 years, 8 months
x12a tramo
by Giancarlo Taroni
In linux mint 64 bit I have troble tu run x12a and tramo by Gretl. In
linux Mint 32 bit all works properly.
Why?
Thanks
Giancarlo Taroni
13 years, 8 months
Correlogram Plot
by Henrique Andrade
Dear Gretl Community,
I’m trying to export my correlograms graphs as Windows meta files (.emf
extension) but I getting a problem with the accented titles of the graphs.
Please, could you take a look at the attached file?
What can I do to fix this?
Thanks in advance,
--
Henrique C. de Andrade
Doutorando em Economia Aplicada
Universidade Federal do Rio Grande do Sul
www.ufrgs.br/ppge
13 years, 8 months
Re: [Gretl-users] if statement error (Re: Gretl-users Digest, Vol 43, Issue 17)
by Hélio Guilherme
Hi David,
(We can use '=' as the comparison operator, but I prefer the '==' C/C++/Java
syntax).
Well, here is the script I tested on latest Windows Snapshot.
text:
scalar state = 13
scalar delta = 0.001
if state==13
delta=.38
elif state==16
delta=.35
elif state==31
delta=.30
elif state==84
delta=.26
else delta=0
endif
printf "%d => %f", state, delta
---
We may have found a bug here:
The statement "*else delta=0*" is not being evaluated! Please test this.
Hélio
On Mon, Aug 16, 2010 at 5:12 PM, david santini <divadsantini(a)yahoo.com>wrote:
> hey, thanks for responding, but I'm still getting the 'error evaluating
> if', even when I replace all '=' with '=='. Any chance you could type the
> basic code exactly how it should look? -david
>
> --- On *Mon, 8/16/10, gretl-users-request(a)lists.wfu.edu <
> gretl-users-request(a)lists.wfu.edu>* wrote:
>
>
> From: gretl-users-request(a)lists.wfu.edu <gretl-users-request(a)lists.wfu.edu
> >
> Subject: Gretl-users Digest, Vol 43, Issue 17
> To: gretl-users(a)lists.wfu.edu
> Date: Monday, August 16, 2010, 12:00 PM
>
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> than "Re: Contents of Gretl-users digest..."
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>
> Today's Topics:
>
> 1. if statement (david santini)
> 2. if statement error (david santini)
> 3. Re: if statement error (H?lio Guilherme)
>
>
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Sun, 15 Aug 2010 21:20:20 -0700 (PDT)
> From: david santini <divadsantini(a)yahoo.com<http://mc/compose?to=divadsantini@yahoo.com>
> >
> Subject: [Gretl-users] if statement
> To: gretl-users(a)lists.wfu.edu<http://mc/compose?to=gretl-users@lists.wfu.edu>
> Message-ID: <886407.82767.qm(a)web53207.mail.re2.yahoo.com<http://mc/compose?to=886407.82767.qm@web53207.mail.re2.yahoo.com>
> >
> Content-Type: text/plain; charset="iso-8859-1"
>
> Dear Gretl community,
>
> I keep getting errors on my if statements.? The program responds "error
> evaluating if", as if it doesn't recognize the command, yet turns red when i
> type it.?
>
> Here's the code I am using:
>
> if state=13
> ??? delta=.38
> elif state=16
> ??? delta=.35
> elif state=31
> ??? delta=.30
> elif state=84
> ??? delta=.26
> else delta=0
> endif
>
> I've been over the syntax in the user manuals and cannot understand what I
> am doing wrong.? Any insights on this issue are greatly appreciated.?
> Thanks.?
>
>
>
>
> -------------- next part --------------
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>
> ------------------------------
>
> Message: 2
> Date: Sun, 15 Aug 2010 21:43:10 -0700 (PDT)
> From: david santini <divadsantini(a)yahoo.com<http://mc/compose?to=divadsantini@yahoo.com>
> >
> Subject: [Gretl-users] if statement error
> To: gretl-users(a)lists.wfu.edu<http://mc/compose?to=gretl-users@lists.wfu.edu>
> Message-ID: <666713.29338.qm(a)web53202.mail.re2.yahoo.com<http://mc/compose?to=666713.29338.qm@web53202.mail.re2.yahoo.com>
> >
> Content-Type: text/plain; charset="iso-8859-1"
>
> Dear Gretl community,
>
> I
> keep getting errors on my if statements.? The program responds "error
> evaluating if", as if it doesn't recognize the command, yet turns red
> when i type it.?
>
> Here's the code I am using:
>
> if state=13
> ??? delta=.38
> elif state=16
> ??? delta=.35
> elif state=31
> ??? delta=.30
> elif state=84
> ??? delta=.26
> else delta=0
> endif
>
> I've been over the syntax in the user manuals and cannot understand what I
> am doing wrong.? Any insights on this issue are greatly appreciated.?
> Thanks.?
>
>
>
>
> -------------- next part --------------
> An HTML attachment was scrubbed...
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> http://lists.wfu.edu/pipermail/gretl-users/attachments/20100815/bf0aee57/...
>
> ------------------------------
>
> Message: 3
> Date: Mon, 16 Aug 2010 15:44:44 +0100
> From: H?lio Guilherme <helioxentric(a)gmail.com<http://mc/compose?to=helioxentric@gmail.com>
> >
> Subject: Re: [Gretl-users] if statement error
> To: Gretl list <gretl-users(a)lists.wfu.edu<http://mc/compose?to=gretl-users@lists.wfu.edu>
> >
> Message-ID:
> <AANLkTim7HYiZUbMX1QqAG91CMJL4BiwqMtR+qjp6+HBv(a)mail.gmail.com<http://mc/compose?to=HBv@mail.gmail.com>
> >
> Content-Type: text/plain; charset="utf-8"
>
> Use comparison '==' and not the assignment symbol '=' in the if clause.
>
> On Mon, Aug 16, 2010 at 5:43 AM, david santini <divadsantini(a)yahoo.com<http://mc/compose?to=divadsantini@yahoo.com>
> >wrote:
>
> > Dear Gretl community,
> >
> > I keep getting errors on my if statements. The program responds "error
> > evaluating if", as if it doesn't recognize the command, yet turns red
> when i
> > type it.
> >
> > Here's the code I am using:
> >
> > if state=13
> > delta=.38
> > elif state=16
> > delta=.35
> > elif state=31
> > delta=.30
> > elif state=84
> > delta=.26
> > else delta=0
> > endif
> >
> > I've been over the syntax in the user manuals and cannot understand what
> I
> > am doing wrong. Any insights on this issue are greatly appreciated.
> > Thanks.
> >
> >
> > _______________________________________________
> > Gretl-users mailing list
> > Gretl-users(a)lists.wfu.edu<http://mc/compose?to=Gretl-users@lists.wfu.edu>
> > http://lists.wfu.edu/mailman/listinfo/gretl-users
> >
> -------------- next part --------------
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> http://lists.wfu.edu/pipermail/gretl-users/attachments/20100816/9b820477/...
>
> ------------------------------
>
> _______________________________________________
> Gretl-users mailing list
> Gretl-users(a)lists.wfu.edu <http://mc/compose?to=Gretl-users@lists.wfu.edu>
> http://lists.wfu.edu/mailman/listinfo/gretl-users
>
> End of Gretl-users Digest, Vol 43, Issue 17
> *******************************************
>
>
>
13 years, 8 months
on cusum test
by artur bala
Hi,
I'm trying to do the CUSUM test through separated regressions but the result differs slightly froms gretl's cusum command.
I can't see where the trick is... Any suggestion?
cheers,
artur
null
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13 years, 8 months
if statement error
by david santini
Dear Gretl community,
I
keep getting errors on my if statements. The program responds "error
evaluating if", as if it doesn't recognize the command, yet turns red
when i type it.
Here's the code I am using:
if state=13
delta=.38
elif state=16
delta=.35
elif state=31
delta=.30
elif state=84
delta=.26
else delta=0
endif
I've been over the syntax in the user manuals and cannot understand what I am doing wrong. Any insights on this issue are greatly appreciated. Thanks.
13 years, 8 months
Data editing questions
by Data Analytics Corp.
Hi,
I have two questions about editing data:
1. How do I delete observations? If I have 100 observations and I
want to delete, say, the last 10, how do I do this?
2. When I imported some data from Excel, the first column in the
spreadsheet had labels, say country names. In Gretl, these labels
appear as observation labels instead on 1, 2, 3 ... I'd like to
edit these labels in Gretl, perhaps to fix a misspelling or if I
add an observation to the dataset to change the observation number
to a more descriptive word or to just change the labels from
numbers to words for all the observations. How can I do this?
Thanks,
Walt
________________________
Walter R. Paczkowski, Ph.D.
Data Analytics Corp.
44 Hamilton Lane
Plainsboro, NJ 08536
________________________
(V) 609-936-8999
(F) 609-936-3733
walt(a)dataanalyticscorp.com
www.dataanalyticscorp.com
_____________________________________________________
--
________________________
Walter R. Paczkowski, Ph.D.
Data Analytics Corp.
44 Hamilton Lane
Plainsboro, NJ 08536
________________________
(V) 609-936-8999
(F) 609-936-3733
walt(a)dataanalyticscorp.com
www.dataanalyticscorp.com
13 years, 8 months
if statement
by david santini
Dear Gretl community,
I keep getting errors on my if statements. The program responds "error evaluating if", as if it doesn't recognize the command, yet turns red when i type it.
Here's the code I am using:
if state=13
delta=.38
elif state=16
delta=.35
elif state=31
delta=.30
elif state=84
delta=.26
else delta=0
endif
I've been over the syntax in the user manuals and cannot understand what I am doing wrong. Any insights on this issue are greatly appreciated. Thanks.
13 years, 8 months
