March 2023 - Gretl-users - gretlml.univpm.it

Problem with date-time labels in GNU-plot

by climnios＠providence.edu

When plotting a time series, time-date labels look fine. Once plot is edited, time-date labels become jumbled and illegible. They seem to be collated on top of each other. Any suggestions?

6 hours, 14 minutes

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'summary' request

by Summers, Peter

Hi all, I have a feature request for the "summary" command, and a related documentation issue. Currently the $result accessor isn't produced if the -by=byvar option is given. How difficult would it be to change that? For example could $result be a bundle in that case, with something like $result.mean giving the means for the various values of byvar? Ideally this would also be possible for a list argument, though I realize that'd be messier - maybe $result[i].mean or something like that? In any case, I think the documentation should mention that the $result accessor isn't generated with the -by option. The context is doing a growth accounting exercise and tabulating average growth rates by decade. Currently I'm using a loop construct to build up a table of values. That works fine, but feels a bit brute-force. Cheers, Peter [signature_229785562] Dr. Peter M. Summers| Associate Professor of Economics Chair, Faculty Senate One University Parkway, High Point, NC 27268 Office: 336-841-9650 Choose to be extraordinary!(r) [Facebook logo]<https://www.facebook.com/HighPointU>[Twitter logo]<https://twitter.com/HighPointU>[Instagram logo]<http://instagram.com/highpointu>[LinkedIn logo]<https://www.linkedin.com/school/28206>

6 hours, 27 minutes

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Elements Multiplication

by Dhanasekaran Kuppusamy

Dear gretl experts , I would like to know how to multiply the *corresponding elements* of two matrices of A and B to generate matrix C as shown below and the square values of the elements in matrix C using gretl. For example, 1) matrix A (3x3): matrix B (3x3): matrix C (3x3): 4 2 3 1 1 2 4 2 6 2 -3 2 1 0 1 2 0 2 - 3 1 2 1 2 2 - 3 2 4 2) How to generate *square values of the elements *in matrix C to get matrix D : For example, matrix C (3x3): matrix D (3x3): 4 2 6 16 4 36 2 0 2 4 0 4 -3 2 4 9 4 16 Thanks, Dr.K.Dhanasekaran

5 days, 10 hours

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hack-of-the-day: set global linewidth & dashtype

by Artur T.

Hi all, I just stumbled over this "hack" which I was looking for since ever: <hansl> set verbose off open denmark --quiet list L = log(dataset) plot L options with-lines time-series literal set termoption lw 2 # set linewidth globally # set dashtype for each series literal set for [i=1:8] linetype i dashtype i end plot --output=display </hansl> If you execute this, you see that you can globally set the linewidth as well as the dashtype very easily using gnuplot. Best, Artur

1 week, 4 days

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v0.2 of "Imputer" out now

by Artur T.

Hi all, A new version of the "Imputer" package just got published. Version 0.2 includes a bug fix when using cross-sectional data. Maybe more interesting to you: I've added two new functions, namely backfill() and frontfill(). For details, see the doc: https://gretl.sourceforge.net/current_fnfiles/Imputer.gfn Also v0.2 now requires at least gretl version 2022b. Best Artur

1 week, 5 days

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the oddsratios function package will be retired

by Sven Schreiber

Dear all, now that gretl 2023a is out, the contributed function package "oddsratios.gfn" will be retired soon, because the functionality is now included natively in the core gretl program. You can find these results after a Logit or similar estimation under the Analysis menu, or in case you are scripting, it's in the $model bundle (as the matrix $model.oddsratios). As always, if you need the function package after it is retired from the server (for example because you cannot upgrade to gretl 2023a immediately), you should keep the package installed on your local machine, where it will continue to work. And perhaps make a backup copy of it. cheers sven

2 weeks

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Multivariate GARCH models

by Riccardo (Jack) Lucchetti

Hi all, as you may know, we've had a function package called MGARCH, that I wrote, for estimating BEKK models. I'm about to retire it, since two new packages are now avaliable: *** a package called BEKK, which can be seen as an updated version of MGARCH. From the user's point of view, there are very few changes. The most notable one is that some functions have been renamed. Therefore, if you have scripts including the line "include MGARCH.gfn" you may want to change that to "include BEKK.gfn" and check for functions beginning with "Get_": those have now a different name. *** a new package called DCC, which, well, deals with DCC models. The authors are Giulio Palomba, Luca Pedini and myself. It's a brand new thing, so testing would be much appreciated. More generally speaking, testing is always good, so if you're into financial econometrics please give them a go and tell me is you like them. ------------------------------------------------------- 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 -------------------------------------------------------

2 weeks

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correlation

by Alison Loddick

Hi, I'm sure this is an easy question for econometricians rather than me as a statistician, but when using non-parametric correlation GRETL gives significance values and only one correlation at a time, but when using parametric correlation, we get a matrix but no significance values. Correlation values are impacted by sample size; therefore, I use significance to give an idea of the relationship. I also ask this question as when teaching using GRETL, a matrix for non-parametric correlation would be a preferred output that students can put in a document rather than creating one themselves from individual answers. Thank you Alison Alison Loddick BSc MSc PGCE CStat Learning Development Tutor (Mathematics and Statistics) Library and Learning Services DDI +44 (0)1604 893502 [https://static.hobsons.co.uk/northampton/usermedia/Staff%20News/2017/New%...] northampton.ac.uk University of Northampton, Waterside Campus, University Road, Northampton, NN1 5PH United Kingdom University of Northampton: Transforming Lives and Inspiring Change www.northampton.ac.uk This e-mail is private and may be confidential and is for the intended recipient only. If you are not the intended recipient you are strictly prohibited from using, printing, copying, distributing or disseminating this e-mail or any information contained in it. We virus scan all E-mails leaving The University of Northampton but no warranty is given that this E-mail and any attachments are virus free. You should undertake your own virus checking. The right to monitor E-mail communications through our networks is reserved by us. Disclaimer The information contained in this communication from the sender is confidential. It is intended solely for use by the recipient and others authorized to receive it. If you are not the recipient, you are hereby notified that any disclosure, copying, distribution or taking action in relation of the contents of this information is strictly prohibited and may be unlawful. This email has been scanned for viruses and malware, and may have been automatically archived by Mimecast, a leader in email security and cyber resilience. Mimecast integrates email defenses with brand protection, security awareness training, web security, compliance and other essential capabilities. Mimecast helps protect large and small organizations from malicious activity, human error and technology failure; and to lead the movement toward building a more resilient world. To find out more, visit our website.

2 weeks, 1 day

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mastodon account

by Artur T.

Dear all, gretl has a mastodon account now: https://econtwitter.net/@gretl Username: @gretl@econtwitter.net Mastodon is part of the fediverse, and an opensource and community-driven alternative to twitter. If you're on mastodon: Please follow. I have also enabled automatic cross-postings from twitter to mastodon and vice versa. Our twitter user name is: @gretl_stats Best, Artur P.S. Self-advertisement: If you're also on mastodon, let's connect! You can find me under @atecon@mastodon.social

2 weeks, 2 days

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min Windows version

by Marcin Błażejowski

Hi, is Windows 7 Pro supported by current snapshot installer? I'm asking because I got a massage with info that my (windows) version is not supported by a program. Marcin -- Marcin Błażejowski

2 weeks, 2 days

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Gretl-users March 2023