as may you remeber I use "yahoo_get" function very extensively and
everything was OK until today.
Today yahoo_get seems "not working".
And I have no clue about what was wrong.
No changes in the script, apparently no changes in the function nor in
I think there is a trouble in the yahoo database. But is just
So could somebody kindly try if he have the same trouble in data
Here my code (a fragment) which worked fine until yesterday.
# Apro un set di 50 giornate con
# 5 rilevazioni settimanali che iniziano il 1 ott 2016 e indico che è
una serie temporale
setobs 5 2017-04-03 --time-series
# chiama la funzione yahoo_get
# scarico i titoli
loop foreach i A2A.MI ACE.MI
loop for (r=1; r<15000; r+=1)
Errore nei dati
thx for any help
Dear gretl users,
The 5th gretl conference program, Athens 2-3 June 2017, is up in
I attach the program.
Looking forward to see you in Athens!
on behalf of the Local Organizing Committee
Ioannis Venetis (University of Patras)
Manolis Tzagarakis (University of Patras)
Evi Salamaliki (University of Patras)
Dear gretl users,
I attach information regarding registration (and payment details) - 5th
gretl conference Athens 2-3 june 2017
In any case (simply information or regarding your registration if you
attend) please contact me at
either gc2017(a)gretlconference.org or ivenetis(a)upatras.gr
In order to confirm and finalize your registration, please pay the
registration fee of 100EUR (Euro)
via bank transfer to the following bank account of the Special Account
of Funds and Research of the University of Patras (ELKE Upatras)
(please do not forget SUBJECT/COMMENT: "5.544 GRETL <YOUR NAME>")
Recipient: ELKE UPatras EL998219694
Bank: National Bank of Greece (https://www.nbg.gr/en )
IBAN: GR 60 0110 2290 0000 2295 4000 232
SWIFT-Code (BIC): ETHNGRAA
Amount: 100 EUR / Euro
Subject/Comment: "5.544 gretl <your name>"
For those of you outside the Euro area, please apply the ECB's exchange
rates to calculate the amount in your local currency to be transferred.
You should receive a preliminary receipt via email within four weeks of
your payment (date of arrival of funds). A final receipt will be
If you require an invoice, after the bank transfer please email me
Institution name, Address, V.A.T number
EMAIL SUBJECT: Invoice <your name>
PHD STUDENTS fee is set at 60EUR (Euro) (lunches, refreshments and
To contact me, use either gc2017(a)gretlconference.org or
Finally, note that any co-authors of the accepted papers will in general
not receive this message (only if they are explicitly registered with
If there are co-authors who want to participate, they are most welcome.
In that case please tell them to contact me.
Thank you and best regards,
the Local Organizers
On Fri, 5 May 2017, Rao G.V. wrote:
> Hi Riccardo
> I got your details from the GRETL user community site. A great friendly
> product from a user perspective!
Thank you. I'm taking the liberty to forward my reply to the gretl user
list, so that our exchange becomes public and possibly useful to other
> I have used a number of functions but mainly the logit regression and
> the Bayesian function. All good.
> However I noted that when the output for the logit function is saved in
> word and copied to an excel spreadsheet the signs are not proper minus
> signs. See below.
> GRETL OUTPUT
> Coefficient Std. Error z p-value
> V3D_A1_6 −175812 50541.4 −3.479 0.0005 ***
> compared to
> Which means one needs to correct the output if further analytical work
> needs to be performed. Now, in an earlier version of GRETL the signs
> were in the correct format !............ so may be a suggestion to
> correct this. The sign has remained unchanged for quite some time now.
This has come up several times. If you copy-n-paste from gretl to a text
processing application we use a character that is the typographically
appropriate glyph for the minus operator, which is unfortunately different
from the minus sign that mathematical apps use. However, if you
copy-n-paste directly from gretl to a spreadsheet (without the
intermediate word processing passage) everything should be ok.
> Another suggestion would be to add a stepwise function (backward or
> forward) for sequential addition/deletion of variables to determine the
> final logit model (example in the binary logit) with the existing
> p-values (say 0.1) as the criteria of adding (or removing) significant
> variables. This is similar to functions/options available in SPSS,
> Statgraphics, Stata and other packages. This would greatly assist a
> user identify the significant variables and model quicker.
> Admittedly this will add to the processing time and memory to the final
> output. However it will definitely be a big improvement and if it is
> added to the binary logit function as an option in the menu like other
> software packages (compared to a separate function package) even
> better!. Currently this is a very manual repetitive process of removing
> each non-significant variable from the model, especially if the list of
> regressors is large and therefore time consuming.
> I noted that there is a function package available for sequential
> variables, however this is only for OLS not other functions such as
> binary logit. Also the function seems to require a list 1 of initial
> regressors and then the candidates. What if all regressors are
> candidates to begin with......Also there does not appear to be p-value
> criteria which is a standard feature in most packages.
Actually, the existing function package could be extended to cover a wider
class of models than OLS. Let me think about it.
> I hope my input is useful
It surely is. Thank you for your feedback!
Riccardo (Jack) Lucchetti
Dipartimento di Scienze Economiche e Sociali (DiSES)
Università Politecnica delle Marche
(formerly known as Università di Ancona)
Paul McNelis has posted on his site
a number of Matlab programs running the examples of his textbook on
Neural Networks ("NN in Finance: Gaining Predictive Edge in the
Market"). If you do not have access to Matlab I guess using some
ingenuity you could run these programs as external code from Gretl.
good luck :-)
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Dip. di Scienze Statistiche
Università di Roma "La Sapienza"
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