December 2013 - Gretl-users - gretlml.univpm.it

by Logan Kelly

Hello, I need to take the log difference of a matrix, i.e. log(M[2 rows(M):,]/M[1:rows(M)-1,]). Unfortunately, M has elements equal to zero. I need to replace the nan's and inf's with 0's. This almost works M = isnan(M) ? 0 : M but does not remove inf's. Any sugestions?

9 years, 4 months

5
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Computing an index for unique combinations of discrete variables

by Giuseppe Vittucci

Hi, I have firm level data and two categorical variables (region and sector). I need to define another variable which is an index identifying the unique combinations region-sector each firm belongs to, so I can use it in computing cluster-robust s.e. One way to do this is to use the command "values" for region and sector and then use a nested loop, but this seems quite time-consuming... Is there a simpler way in gretl to do it? BTW, it could be useful to allow one to use the option "cluster" also with the FE estimator. Since the robust s.e. used in FE is the Arellano estimator and this is a s.e. clusterized over cross-sectional units and thus it can be considered a specification of the cluster-robust estimator, it seems quite natural to allow one to identify clusters different from the units. Something like: panel y 0 x --robust=cvar or panel y 0 x --cluster=cvar where the default behavior panel y 0 x --robust is to clusterize over cross-sectional units. Bye Giuseppe

11 years, 5 months

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on gretl's capacity to handle a large matrix

by artur.bala.tn

Dear Allin, Is there something like Stata's "set matsize" command in gretl? gretl crashed when estimating a panel including 600 unit dummies (LSVD estiamtion); Stata did stop over and asked to increase the matsize capacity to handle a larger matrix (the upper limit is 11 000) Merry Christmas to you and to the gretl community! Bets, Artur

11 years, 9 months

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not really a bug

by artur.bala.tn

Dear Allin, When the « Emulate Windows look » option is checked the “Tools > Preferences > Menu font” is not visible anymore. Best, Artur

11 years, 10 months

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csv import bug on windows?

by Dominik Menno

Dear Gretl users, when importing the attached csv file on windows 7 64bit (German localization) into gretl, it says that the first element in variable 1 (female) is empty. But it is not. See also below the Gretl console output. When importing into Gretl under Linux (ubuntu 12.04 64bit), everything works fine, the file is imported without problems. Does anybody know why this behavior might occur? Thank you and Best, Dominik Here is the Gretl console output: gretl console: type 'help' for a list of commands ? open C:\Users\dmenno\Downloads\CollegeDist.csv parsing C:\Users\dmenno\Downloads\CollegeDist.csv... using delimiter ',' longest line: 100 characters first field: 'female' number of columns = 14 number of variables: 14 number of non-blank lines: 342 scanning for variable names... line: female,black,hispanic,bytest,dadcoll,momcoll,ownhome,urban,cue80,stwmfg80,dist,tuition,ed,incomehi scanning for row labels and data... the cell for variable 1, obs 1 is empty: treating as missing value treating these as undated data -- Dominik Menno RWTH Aachen University Templergraben 64 52064 Aachen Tel: +49 (0)241/80 96 286 Fax: +49 (0)241/80 92 337 dominik.menno(a)rwth-aachen.de

11 years, 10 months

4
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probable bug

by Alessandro Astuti

i everybody, I'm running gretl 1.9.14 on debian testing and I have a problem with export in rtf format on libreoffice calc. The problem is that, when running gretl in english, when exporting things like correlation matrix or anova table on libreoffice calc using rtf format, numbers are displayed as time. The funny thing is that there's not any problem if I run gretl in italian. I wonder whether it's a bug of gretl or libreoffice's. Sorry for my bad english. -- Alessandro Astuti

11 years, 10 months

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Wald test

by artur.bala.tn

Dear Allin, The Wald omit test recalled from a model window still reports the default F-form of the test. Instead, things look fine typing the "omit" command with the --chi-square option in the console which produces the chi-square Wald statistic. Best, Artur

11 years, 10 months

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on pooled panel estimation

by artur.bala.tn

Dear Allin, While estimating a pooled panel model through the ols command I realized that the F statistics is different if the --cluster option is used although the reported degrees of freedom remain unchanged (as it should be). Besides, does the --cluster option overrides the selection of HAC? Best, Artur

11 years, 10 months

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Re: [Gretl-users] yahoo_get function

by Bachman, Daniel (US - Washington D.C.)

Looks like it is indeed a proxy issue. When I do this on a personal computer (not set up by my firm) I have no problem using yahoo_get. I would love to hear if you know of a workaround, but I’m guessing not. Danny Bachman This message (including any attachments) contains confidential information intended for a specific individual and purpose, and is protected by law. If you are not the intended recipient, you should delete this message and any disclosure, copying, or distribution of this message, or the taking of any action based on it, by you is strictly prohibited. v.E.1

11 years, 10 months

2
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yahoo_get function

by Bachman, Daniel (US - Washington D.C.)

I can’t get this function to work. I get an error message “Error 12!/Data download failed” every time I try it. The instructions aren’t clear about what (if anything) I need to do on the Internet side of things. Do I need a page open with the data, or will the function look the page up? Danny Bachman This message (including any attachments) contains confidential information intended for a specific individual and purpose, and is protected by law. If you are not the intended recipient, you should delete this message and any disclosure, copying, or distribution of this message, or the taking of any action based on it, by you is strictly prohibited. v.E.1

11 years, 10 months

2
1
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Gretl-users December 2013