gretl and zoom seemingly unable to play nice together
by Riccardo (Jack) Lucchetti
Hi all,
I was just shown something I was unaware of: a colleague of mine was
having problems with GUI client while sharing his screen on Zoom. The
issue is that some of the GUI button don't work: for example, the
green/red arrows for regressor selection in the OLS window. They're simply
unresponsive. Note that:
- the problem happens under windows. I tried sharing my screen on my Linux
machine and everything worked fine (no idea about the Mac)
- it seems to be zoom-specific: we tried doing the same using SkyPe and,
again, everything worked ok.
- the gretl verion was 2022a, so with the newest GTK library.
If some of the people on the list could try experimenting on their windows
machines to have a clearer idea of what's going on, that'd be helpful.
-------------------------------------------------------
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
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2 years, 2 months
matrix commutation operator
by Riccardo (Jack) Lucchetti
Hi all!
As you may know, the "extra" package contains a function called "commute"
that performs pre-multiplication of a matrix by the so-called
"commutation" matrix: in formulae, if A is an rxc matrix, then
vec(A') = K_{m,n} vec(A)
and K_{m,n} is the "commutation matrix" (in fact, the function in extra is
slightly more general, but let's skip this for now).
Luca Pedini and myself are writing some C code that would benefit from
having this function in libgretl, so we're thinking to add it to the list
of native functions. We have a few questions for you:
1) can anybody think of a reason why this would be a bad idea?
2) it's very easy (and computationally inexpensive), to inflect the
function in such a way that insted of premultiplication by K_{m,n} one can
return the result of premultiplication by (I + K_{m,n}), which is what one
actually needs in many cases. Would you think this is good to have too?
3) any suggestion for the function name (also conditional on point 2?) We
thouught that "mcommute" could be nice, but we're open to suggestions.
-------------------------------------------------------
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
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2 years, 2 months
Former or potential translators of the gretl web page, please show yourselves
by Sven Schreiber
Hi,
this is an attempt to contact the people that:
(a) either have translated the gretl web page in the past, but haven't
updated it in a while, or:
(b) who would be ready to take over the translation work for the web
pages on a continuous basis, for a certain language.
If you don't fit into (a) nor (b), but you know someone who does, please
read on and forward this message accordingly!
Note that this area is independent from the translation of the gretl
program itself (its interface). Here we are talking only about the web page.
Here's the situation right now about the languages on gretl.sf.net:
- Spanish/Castilian, Italian, Portuguese, Russian (and English, of
course): Everything's fine as far as I can tell, no action needed.
- Polish: Is a special case, the link leads to external pages by the
Kufel team. Probably no action needed.
- Other languages that are supported by gretl (namely: French, German,
Basque, Catalan, Galician, Ukrainian, Turkish, Czech, Traditional
Chinese, Albanian, Bulgarian, Greek, Japanese and Romanian): Web page
translations are either severely out of date --and therefore currently
deactivated-- or have never been attempted and do not exist. For these
languages, please contact me by replying here or off-list if you can
contribute.
(Yes, I'm the gretl translator for German, but I have never attempted to
also translate the web pages or the help documents because I don't have
enough time for that. We can all contribute and split the work.)
Thanks
Sven
------
Related internal notes to the web admin:
- The non-English page versions still contain a link to Turkish, while
Turkish is not present (page is shown in English).
- In the language list from the web page it says "Traditional Chinese",
but the language chooser in the program has "Chinese (Taiwan)" and
"Chinese (simplified)".
2 years, 2 months
dbnomics addon: allow sorting beyond the current window
by Sven Schreiber
Hi,
what I mean is best explained by example:
- open File/Databases/Dbnomics/browse
- Locate and double-click on ECB
- I get a window saying "gretl: ECB datasets" at the top, and at the
bottom "show datasets 1-40 of 91"
When I click on the first column header "Code" on the little arrow, I
can sort the entries alphabetically (increasing or decreasing). That's
fine, but it only considers the 40 datasets in the current window.
That's of limited use, I think. Because typically you want to sort over
the entire set, not the arbitrary portion that happens to fit in the
window.
Similarly, the search facility does not allow to search in the labels of
all ECB datasets, only the current 40. (Or alternatively, going down one
level and search in the selected dataset, which is something different.)
Or am I missing something there?
thanks
sven
2 years, 2 months
VECM linear restrictions GUI: right-click has no effect
by Sven Schreiber
Hi,
trying to specify some cointegration restrictions after estimating a
VECM in the GUI. The text at the top says "right-click for some
abbreviations" (or perhaps symbols, I'm re-translating on the fly
again). But when I right-click, nothing happens. This is on Windows 10,
recent snapshot.
Can anybody confirm or explain this?
thanks
sven
2 years, 2 months