April 2021 - Gretl-users - gretlml.univpm.it

2021b git: WLS estimation bug

by Artur Bala

Dear Allin, In a WLS estimation when the weight variable contains zeros gretl stops executing saying that "Weight variable is not a dummy but contains zeros" The same worked perfectly before with the observations weighted 0 being simply dropped from the estimation. Here's a basic code for replication <hansl> nulldata 50 series x = normal() series y = normal() series w = uniform() w[1]=0 wls w y x </hansl> Best, Artur

3 years, 8 months

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I have a need to save gretl sessions with a script

by Fred Engst

Dear gretl team, The reason for my request: For online teaching, I would like to create individualize exam datasets with multiple modeling outputs as icons, and having individualized exam questions stored in the notes page. During the exam, I just send each student their individualized datasets and questions for them to work on. Once they receive the dataset, they just have to open the notes page and see the exam questions stored in there. This is a way to reduce cheating, for each person’s question and dataset are different. I can’t help if someone else is doing the exam for them, but at least they can’t just simply copy from each other. I figured out how to create the random sample datasets, the multiple modeling icons by a script. Saving the exam questions on the notes page is a bit tedious, but doable. I would like to do: Save each session that I created using scrip, but I can’t. It would be great also if I can save text into the notes page using a scrip. Thanks! Fred

3 years, 8 months

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Display problem with Gretl Plot control and many lines

by Ekkehart Schlicht

3 years, 8 months

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Alternative for First Difference GMM

by 3J LEMA

My panel data have these: Number of Companies = 10, Time per Company =9, Number of Independent Variables = 6 I used First Difference GMM with results as follows: *1. Number of instruments =71 while the number of cross-sectional units = 9.* 2. The coefficient of the lag of the DV which is used as an independent variable is less than 1 and statistically significant (p<.001). 3. AR(1) is significant (p<.05) 4. AR(2) is nonsignificant (p>.05) *5. Sargan Test is significant (p<.05)* 6. Wald Test is significant (p<.01). Since #1 and #5 are not OK, then First Difference GMM is inappropriate. I tried the Two-Step Difference and the Systems GMM and all are not OK. Can you suggest an alternative?

3 years, 8 months

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Re: Storing model output summary

by Riccardo (Jack) Lucchetti

On Wed, 7 Apr 2021, Iago Varela wrote: > Hi, it wasn't clear to me how to save to a file and print to the console > at the same time, but you're right I didn't focus enogh, I worked around > it with eval readfile("logit_summary.txt") One of the nice little utilities you have in the UNIX world is called "tee", and makes it possible to redirect output to a file while still having it displayed on stdout. Maybe we could have a --tee option to "outfile"; Allin, what do you think? ------------------------------------------------------- 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 -------------------------------------------------------

3 years, 8 months

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Re: Storing model output summary

by Cottrell, Allin

You're ignoring the working example I gave you, which is very simple. Just give a filename as the argument to "outfile" (no buffer option) then execute your logit command, do "end outfile", and you'll get a plain text file containing the logit results. Allin On Wed, Apr 7, 2021 at 1:12 PM Iago Varela <iagovar(a)outlook.com> wrote: > > Hi, I've tried the following > > 1) > > # Running our logit model > > string logit_summary = "" > > outfile logit_summary.txt --buffer=logit_summary # Writing logit output into string var > logit model_dependent model_regressors --p-values > end outfile > > print logit_summary > > 2) > > # Running our logit model > > string logit_summary = "" > > outfile --buffer=logit_summary # Writing logit output into string var > logit model_dependent model_regressors --p-values > end outfile > > print logit_summary > > store model_summary.txt logit_summary > > > Neither of two produce a file, although I can print the result in the second one.

3 years, 8 months

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Re: Storing model output summary

by Artur Tarassow

Am 07.04.21 um 19:47 schrieb Iago Varela: > Hi, it wasn't clear to me how to save to a file and print to the > console at the same time, but you're right I didn't focus enogh, I > worked around it with eval readfile("logit_summary.txt") Yes, readfile() is the way to go for reading a file. Good luck! Artur > ------------------------------------------------------------------------ > *De:* Artur Tarassow <atecon(a)posteo.de> > *Enviado:* miércoles, 7 de abril de 2021 17:29 > *Para:* gretl-users(a)gretlml.univpm.it <gretl-users(a)gretlml.univpm.it> > *Asunto:* [Gretl-users] Re: Storing model output summary > Hi, > > have you seen the command reference on this? Looks pretty clear to me > what to do. > > http://gretl.sourceforge.net/gretl-help/cmdref.html#outfile > <http://gretl.sourceforge.net/gretl-help/cmdref.html#outfile> > > Best, > Artur > > > Am 07.04.21 um 19:12 schrieb Iago Varela: > > Hi, I've tried the following > > > > 1) > > > > # Running our logit model > > string logit_summary = "" > > outfile logit_summary.txt --buffer=logit_summary # Writing logit > > output into string var > > logit model_dependent model_regressors --p-values > > end outfile > > print logit_summary > > > > 2) > > > > # Running our logit model > > string logit_summary = "" > > outfile --buffer=logit_summary # Writing logit output into > string var > > logit model_dependent model_regressors --p-values > > end outfile > > print logit_summary > > store model_summary.txt logit_summary > > > > > > Neither of two produce a file, although I can print the result in the > > second one. > > > > ------------------------------------------------------------------------ > > *De:* Allin Cottrell <cottrell(a)wfu.edu> > > *Enviado:* miércoles, 7 de abril de 2021 13:16 > > *Para:* Gretl list <gretl-users(a)gretlml.univpm.it> > > *Asunto:* [Gretl-users] Re: Storing model output summary > > On Wed, 7 Apr 2021, Iago Varela wrote: > > > > > Sorry, I forgot to mention that I was making a script, this one in > > > particular: https://gitlab.com/iagovar/gretl-logit-test > <https://gitlab.com/iagovar/gretl-logit-test> > > <https://gitlab.com/iagovar/gretl-logit-test > <https://gitlab.com/iagovar/gretl-logit-test>> > > > > > > I was just looking for a way to automatically export the logit > > > summary to a txt. > > > > Then try the "outfile" command: > > > > outfile mymodel.txt > > logit ... > > end outfile > > > > Allin > > _______________________________________________ > > Gretl-users mailing list -- gretl-users(a)gretlml.univpm.it > > To unsubscribe send an email to gretl-users-leave(a)gretlml.univpm.it > > Website: > > > https://gretlml.univpm.it/postorius/lists/gretl-users.gretlml.univpm.it/ > <https://gretlml.univpm.it/postorius/lists/gretl-users.gretlml.univpm.it/> > > > > <https://gretlml.univpm.it/postorius/lists/gretl-users.gretlml.univpm.it/ > <https://gretlml.univpm.it/postorius/lists/gretl-users.gretlml.univpm.it/>> > > > > _______________________________________________ > > Gretl-users mailing list -- gretl-users(a)gretlml.univpm.it > > To unsubscribe send an email to gretl-users-leave(a)gretlml.univpm.it > > Website: > https://gretlml.univpm.it/postorius/lists/gretl-users.gretlml.univpm.it/ > <https://gretlml.univpm.it/postorius/lists/gretl-users.gretlml.univpm.it/> > _______________________________________________ > Gretl-users mailing list -- gretl-users(a)gretlml.univpm.it > To unsubscribe send an email to gretl-users-leave(a)gretlml.univpm.it > Website: > https://gretlml.univpm.it/postorius/lists/gretl-users.gretlml.univpm.it/ > <https://gretlml.univpm.it/postorius/lists/gretl-users.gretlml.univpm.it/> > > _______________________________________________ Gretl-users mailing > list -- gretl-users(a)gretlml.univpm.it To unsubscribe send an email to > gretl-users-leave(a)gretlml.univpm.it Website: > https://gretlml.univpm.it/postorius/lists/gretl-users.gretlml.univpm.it/

3 years, 8 months

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Re: Storing model output summary

by Artur Tarassow

Hi, have you seen the command reference on this? Looks pretty clear to me what to do. http://gretl.sourceforge.net/gretl-help/cmdref.html#outfile Best, Artur Am 07.04.21 um 19:12 schrieb Iago Varela: > Hi, I've tried the following > > 1) > > # Running our logit model > string logit_summary = "" > outfile logit_summary.txt --buffer=logit_summary # Writing logit > output into string var > logit model_dependent model_regressors --p-values > end outfile > print logit_summary > > 2) > > # Running our logit model > string logit_summary = "" > outfile --buffer=logit_summary # Writing logit output into string var > logit model_dependent model_regressors --p-values > end outfile > print logit_summary > store model_summary.txt logit_summary > > > Neither of two produce a file, although I can print the result in the > second one. > > ------------------------------------------------------------------------ > *De:* Allin Cottrell <cottrell(a)wfu.edu> > *Enviado:* miércoles, 7 de abril de 2021 13:16 > *Para:* Gretl list <gretl-users(a)gretlml.univpm.it> > *Asunto:* [Gretl-users] Re: Storing model output summary > On Wed, 7 Apr 2021, Iago Varela wrote: > > > Sorry, I forgot to mention that I was making a script, this one in > > particular: https://gitlab.com/iagovar/gretl-logit-test > <https://gitlab.com/iagovar/gretl-logit-test> > > > > I was just looking for a way to automatically export the logit > > summary to a txt. > > Then try the "outfile" command: > > outfile mymodel.txt > logit ... > end outfile > > Allin > _______________________________________________ > Gretl-users mailing list -- gretl-users(a)gretlml.univpm.it > To unsubscribe send an email to gretl-users-leave(a)gretlml.univpm.it > Website: > https://gretlml.univpm.it/postorius/lists/gretl-users.gretlml.univpm.it/ > <https://gretlml.univpm.it/postorius/lists/gretl-users.gretlml.univpm.it/> > > _______________________________________________ > Gretl-users mailing list -- gretl-users(a)gretlml.univpm.it > To unsubscribe send an email to gretl-users-leave(a)gretlml.univpm.it > Website: https://gretlml.univpm.it/postorius/lists/gretl-users.gretlml.univpm.it/

3 years, 9 months

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Re: Storing model output summary

by Allin Cottrell

On Wed, 7 Apr 2021, Iago Varela wrote: > Sorry, I forgot to mention that I was making a script, this one in > particular: https://gitlab.com/iagovar/gretl-logit-test > > I was just looking for a way to automatically export the logit > summary to a txt. Then try the "outfile" command: outfile mymodel.txt logit ... end outfile Allin

3 years, 9 months

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Re: Storing model output summary

by Allin Cottrell

On Wed, 7 Apr 2021, Iago Varela wrote: > Hi all, I've been trying to look for a way of storing my logit > output summary in the console (coefficients, std deviation, > p-values). I've only seen $coeff and so on, but I wonder if > there's a way to store it all in a txt file without having to > rebuild the summary. When you estimaate a model via the console, append -w or --window to the command line, as in logit y const x -w This has the effect of opening a model output window. In that window go to the File menu and choose "Save as...". You get a choice of formats in which to save the output to file (plain text, LaTeX, RTF, CSV). Allin

3 years, 9 months

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Gretl-users April 2021