April 2025 - Gretl-users - gretlml.univpm.it

by ashaikfe＠gmail.com

A Network Field Technician is responsible for network development and maintenance in the field for any organization. The individual works with the organization’s technical team and its clients to install, configure, maintain, and fix all LAN/WAN and other equipment issues, ensuring efficient network functionality. The technician maintains computer equipment, mobile devices, phones, cabling, routers, switches, and printers, among others, to address all of the client’s networking requirements either remotely or at the clients’ premises. Read More: https://www.fieldengineer.com/skills/network-field-technician

1 month, 1 week

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(no subject)

by Brian Revell

Is there any reason why recursive forecasts cannot be generated and included in the ARIMA option for univariate modelling forecasts (together with their confidence intervals ) when no exogenous variables have been included in the specification Clearly post sample data the MA terms would drop out. Brian

8 months, 3 weeks

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Package updates (December 2024)

by Riccardo (Jack) Lucchetti

Dear all, this message is to inform the community about the activity in our function package repository: during the month of December 2024, 3 packages were updated to a new version: "graphlasso", by Sven Schreiber (graphical Lasso --- l1 shrinkage for covariance matrices) "lomackinlay", by Allin Cottrell and Sven Schreiber (Lo-MacKinlay variance ratio test for determining if a time series is a random walk process) "BACE", by Marcin Błażejowski and Jacek Kwiatkowski (Bayesian Averaging of Classical Estimates) I'll reserve a special mention for the "graphlasso", which now uses a new internal function to speed up computation. Sorry if this message comes relatively late in the month, but I was away ;) Download and enjoy! ------------------------------------------------------- Riccardo (Jack) Lucchetti Dipartimento di Scienze Economiche e Sociali (DiSES) Università Politecnica delle Marche (formerly known as Università di Ancona) r.lucchetti(a)univpm.it http://www2.econ.univpm.it/servizi/hpp/lucchetti -------------------------------------------------------

11 months, 1 week

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ARIMA on log transformed data

by dbrilakis＠yahoo.gr

Hi, I found that my data become stationary (after differentiate) the log data with best ARIMA(p,d,q) How do I rebuilt the ARIMA forecast to the origina scale before log? Tanks in advance

11 months, 2 weeks

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frequent macOS popup about the "otool" command

by Ron Cronovich

Greetings, from Kenosha, WI USA. Last month, I wiped my Mac's hard drive and reinstalled the latest version of macOS, which I do every year without incident. Since then, whenever I run GRETL, macOS gives me a popup that says The "otool" command requires the command line developer tools. Would you like to install the tools now?" There are two options: Cancel, and Install. I always click on Cancel and GRETL runs just fine on my computer, as always. This happens literally every time I run GRETL. If I completely quit GRETL and immediately start it again, I get the same popup. I'm running GRETL version 2025a, which is the latest version. My macOS is up to date, as well. GRETL seems to work fine without the command line developer tools. I'd like to stop getting this popup prompt that keeps asking me the same question. I'd be grateful for any suggestions. Ron

11 months, 3 weeks

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Global Macro Database

by Theodoros Panagiotidis

Dear All, The Global Macro Database is available here: https://www.globalmacrodata.com/data.html It could be useful to have it available via the Gretl sample files. regards Theo -- Theodore Panagiotidis University of Macedonia Thessaloniki, Greece & Research Associate HO, LSE <https://www.lse.ac.uk/Hellenic-Observatory> Linkedin <https://www.linkedin.com/in/theodore-panagiotidis-1371b3169/> GooglePage <https://sites.google.com/view/prof-theodore-panagiotidis/bio?authuser=0>

11 months, 3 weeks

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Introduction to hansl Programming Course

by Artur T.

Dear gretl Mailing List, I would like to share a small introductory course on programming with gretl's scripting language, hansl. You can find the initial *five lectures* available here, with more lectures to follow over the next *2.5 months*. https://github.com/gretl-project/hansl-coding Additionally, the solution scripts for the exercises are located in the "exercises" folder within the same repository. If you encounter any errors or issues, please feel free to let me know by opening an issue on GitHub. This course is a side project of an actual introductory programming lecture for business students that primarily uses Python. It's far from being optimal, but still, I hope you find the materials helpful! Best, Artur

11 months, 4 weeks

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printf for string array

by Artur T.

Dear all, I want to have a formatted printing of a string array: <hansl> strings S = defarray("A", "B", "C") printf "My array: %s", S </hansl> This results in the error: "Data types not conformable for operation". The help for the printf command says: "The format %s should be used for strings." (last sentence in 1st paragraph). I guess that actually refers to type "string". However, why shouldn't it work for an array of strings, too? Yes, I could (should?) make use of the flatten() function before printing, but that does not feel natural (to me). Using the above code, I would expect a line-by-line printout of the array items. Sorry, I just recognize this E-Mail is a mixture of requesting help and partially a kind of feature-request. Best, Artur

12 months

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retirement of the gqtest contributed function package

by Sven Schreiber

Dear all, the contributed but unmaintained function package "gqtest" is going to be retired soon from the gretl package server. The package implemented the old Goldfeld-Quandt test for heteroskedastic residuals. However, nowadays this test is essentially irrelevant for applied work --as also acknowledged in the package's help text--, the standard recommendation would be to run something like the built-in Breusch-Pagan test as a diagnostic. (In scripting, you can do "modtest --breusch-pagan" with or without the additional "--robust" switch. In the GUI in the window of your estimated model, you would go to the menu Tests/Heteroscedasticity/Breusch-Pagan or /Koenker. Of course, another option is to run White's test.) Secondly, being unmaintained the package has had some technical issues for quite some time now, and so the gretl team decided to retire it. The package has been archived here: https://github.com/gretl-project/gqtest. Of course, you can also keep a local copy for yourself which will continue to work as always. Thanks Sven

12 months

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Residuals in Bai-Perron and thresh_infer 0.1

by Olivo Victor

Hello Everyone: Is there a simple way to get and save the residuals in the Bai-Perron and thresh_infer 0.1 packages? Thanks

1 year

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Gretl-users April 2025