July 2018 - Gretl-users - gretlml.univpm.it

by Henrique Andrade

Dear Gretl Community, I really stuck trying to define a function that gives a power set of a set. Suppose I have a set S: S = {"A", "B", "C"} The associated power set, P(S), is: P(S) = {{ }, {"A"}, {"B"}, {"C"}, {"A", "B"}, {"A", "C"}, {"B", "C"}, {"A", "B", "C"}} All that I can think by now (shame on me!) is this: strings S = defarray("A", "B", "C") scalar P_S_len = 2^nelem(S) # the size of the power set strings P_S = array(P_S_len) # an array with 8 spaces. Does anyone have any ideas? Best, Henrique Andrade

6 years, 2 months

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Anybody else with menu problems on Ubuntu 18.04?

by Sven Schreiber

Hi fellow users, since Ubuntu 18.04 was released I have started using gretl more often on Linux again. However, I'm facing the annoying problem that quite often the menus in the main gretl window become unresponsive in the middle of a session. (What I mean is they don't open anymore if you click on them.) This is likely _not_ a gretl bug but probably induced by the specifics of the ubuntu deskop. However, Ubuntu is one of the most popular Linux distros, and 18.04 is a long-term support (LTS) release. So I'm wondering if this is a widespread problem. (So far I know Artur is using Ubuntu, but not the default desktop configuration, and he doesn't have those problems. I, on the other hand, have installed Ubuntu with the standard and default options I believe.) Please, quickly share your experience if you have used gretl on Ubuntu 18.04! thanks, sven

6 years, 3 months

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Re: [Gretl-users] New "frontier" package Gretl-users Digest, Vol 138, Issue 14

by Alecos Papadopoulos

I cannot find the "frontier.pdf" documentation. Does it become available only when I install the package locally? Alecos Papadopoulos PhD Candidate Athens University of Economics and Business, Greece School of Economic Sciences Department of Economics https://alecospapadopoulos.wordpress.com/ On 23/7/2018 19:00, gretl-users-request(a)lists.wfu.edu wrote: > and ask everybody who has an > interest in this class of models to test the new package and tell me about > the bugs that it contains, so I can hopefully fix it.

6 years, 4 months

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Re: [Gretl-users] Gretl-users Digest, Vol 138, Issue 20 Salvaging info on the sample-restriction criteria

by Alecos Papadopoulos

Allin, thanks for the immediate response, and it's good to know that you can make Gretl by-pass the laws of physics! Alecos Papadopoulos PhD Candidate Athens University of Economics and Business, Greece School of Economic Sciences Department of Economics https://alecospapadopoulos.wordpress.com/ On 31/7/2018 19:00, gretl-users-request(a)lists.wfu.edu wrote: > Send Gretl-users mailing list submissions to > gretl-users(a)lists.wfu.edu > > To subscribe or unsubscribe via the World Wide Web, visit > http://lists.wfu.edu/mailman/listinfo/gretl-users > or, via email, send a message with subject or body 'help' to > gretl-users-request(a)lists.wfu.edu > > You can reach the person managing the list at > gretl-users-owner(a)lists.wfu.edu > > When replying, please edit your Subject line so it is more specific > than "Re: Contents of Gretl-users digest..." > > > Today's Topics: > > 1. Re: Subsample info: a little inconvenience (Allin Cottrell) > > > ---------------------------------------------------------------------- > > Message: 1 > Date: Tue, 31 Jul 2018 10:44:16 -0400 (EDT) > From: Allin Cottrell <cottrell(a)wfu.edu> > To: Gretl list <gretl-users(a)lists.wfu.edu> > Subject: Re: [Gretl-users] Subsample info: a little inconvenience > Message-ID: <alpine.LNX.2.21.1807311042300.4682@robroy> > Content-Type: text/plain; charset="iso-8859-7"; Format="flowed" > > On Sat, 28 Jul 2018, Alecos Papadopoulos wrote: > >> I noticed the following: if I restrict the range of a sample using a >> dummy variable, then in the "show status" command it shows which >> criteria are used to restrict the sample. >> >> Suppose now that I save and close the session with the restriction in >> place. Then if I re-open it, the restriction remains, but the "show >> status" command no longer shows the criteria that restrict the sample. >> >> Would it be possible to salvage this information through the >> close-and-reopen-session situation?? (this sounds like "can we salvage >> information when passing through a black hole"?) > OK, that's feasible. The sample-restriction string is now saved on > saving a session file -- that's in git, snapshots will follow. > > Allin > > ------------------------------ > > _______________________________________________ > Gretl-users mailing list > Gretl-users(a)lists.wfu.edu > http://lists.wfu.edu/mailman/listinfo/gretl-users > > End of Gretl-users Digest, Vol 138, Issue 20 > ******************************************** >

6 years, 4 months

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Subsample info: a little inconvenience

by Alecos Papadopoulos

Good afternoon. I noticed the following: if I restrict the range of a sample using a dummy variable, then in the "show status" command it shows which criteria are used to restrict the sample. Suppose now that I save and close the session with the restriction in place. Then if I re-open it, the restriction remains, but the "show status" command no longer shows the criteria that restrict the sample. Would it be possible to salvage this information through the close-and-reopen-session situation? (this sounds like "can we salvage information when passing through a black hole"?) -- Alecos Papadopoulos PhD Candidate Athens University of Economics and Business, Greece School of Economic Sciences Department of Economics https://alecospapadopoulos.wordpress.com/

6 years, 4 months

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"outfile" makeover

by Allin Cottrell

The "outfile" command has undergone a slight makeover (but with backward compatibility preserved). This is in git and snapshots. * Creation of a new file (or overwriting an existing one) is now the default action. The --write option is still accepted but it's implicit unless --append is given. * The recommended way of terminating redirection of output is now "end outfile" (but "outfile --close" is still accepted). * The script editor now treats "outfile" as a block command, and indents the enclosed lines appropriately. Allin

6 years, 5 months

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Must I always know the number of rows in advance when making an ODBC query?

by Peter H. Lemieux

From gretl, if I run ? open dsn=polls user=phl --odbc Connected to ODBC data source 'polls' ? data dem rep query="select democrat,republican from generic" --odbc ? print dem The symbol 'dem' is undefined However, if I precede the data command with "smpl 1 228", gretl imports all 228 rows. Is there a way to import data from SQL that doesn't require knowing the number of observations in advance? I'd like just to point gretl at a database, give it a query like the above, and have it populate the database with all the records it finds? Is that not possible? It works like that when importing data from CSV files. Thanks! Peter Dr. Peter H. Lemieux politicsbythenumbers.org politicsbythenumbers(a)gmail.com @PeterHLemieux

6 years, 5 months

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new frontier package

by Riccardo (Jack) Lucchetti

I know this sounds like a plug and one shouldn't brag about his own work, but I'd like to say a couple of words about the new package called "frontier" that I put together for performing stochastic frontier analysis and is now available on the gretl server. This package gives you, in practice, the combination of the two old packages "sfa_mod" and "sfa_eff" by Gordon Hughes, with a few slight improvements that were made possible by the greater power of the hansl language we have achieved over the past few years. I'd like to thank Gordon for his work and ask everybody who has an interest in this class of models to test the new package and tell me about the bugs that it contains, so I can hopefully fix it. Thanks! ------------------------------------------------------- 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 -------------------------------------------------------

6 years, 5 months

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gnuplot command-log for frequency distribution and estimate density graphs

by Leonardo Suarez Romero

Hello again, me with command-log instructions: This time I'm trying to get the 'command log' for a 'freq' distribution of a variable to include it into a 'script.inp' file and create after gnuplot graphs-log. But the command-log window only provides the reference of the --freq command and does not specifies where or how the gnuplot file is made. I have already checked the help file for the --freq command but could not find how its graph maded. In the case of the 'Estimated Density Plot' instruction from the 'Variable' menu the command-log not even specifies the function it runs so, could someone kindly helps me to find this commands ? Thanks in advance, kind regards. Mtro. Leonardo Suárez-Romero. *Consultor en Finanzas. * Punto Sao Paulo, Oficina 2230 www.pfamexico.com Av de Las Américas No.1545, Piso 22, Col Providencia. Cel: 3333687873 Tel: (33) 80000191. Este correo y cualquiera de sus archivos adjuntos pueden contener información privilegiada y confidencial. Si Ud. no es el destinatario , por favor notifique inmediatamente al remitente; borre este correo y destruya cualquier copia en su poder. Cualquier uso o divulgación de esta información por una persona distinta al destinatario previsto queda prohibida y puede considerarse ilegal. Protección de datos personales.- La persona física con actividad empresarial, Leonardo Suárez Romero con número de cédula profesional G2010509 expedida por la Comisión Nacional de Seguros y Fianzas, con domicilio ubicado en Av. De Los Pinos 480, Colonia Rinconada de Santa Rita, C.P. 45120 en Zapopan Jalisco, le informa que los datos personales de personas físicas o morales que reciba en calidad de encargado para el tratamiento de los mismos, serán únicamente utilizados para promover los servicios de intermediación técnica y financiera ante las aseguradoras del mercado asegurador Mexicano, así como la administración de pólizas, gestión administrativa, servicios de cobranza , ayuda en la determinación de siniestros amparados por la intermediación de nuestros contratos, tal como lo establece la ley. Para mayor información acerca del tratamiento y de sus derechos, usted puede solicitar en el domicilio indicado, en el correo electrónico leo <leonardosuarezromero(a)gmail.com> romero(a)pfamexico.com y en la página de Internet, el aviso de privacidad completo o comunicarse al teléfono. (33) 33 68 78 73.

6 years, 5 months

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dbnomics support

by Allin Cottrell

The current snapshots for Windows and Mac (quartz) expose our new support for dbnomics. Testing is encouraged! You can find GUI dbnomics access under /File/Databases, or via a "DB" button in the toolbar of the primary databases window. To get documentation on the dbnomics function package (version 1) which supports the whole show, go to the listing of function packages "On local machine", select dbnomics, and click the PDF icon. There's info there on accessing dbnomics via the command line. Allin

6 years, 5 months

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Gretl-users July 2018