Fail in omit variables (seq. option)
by "Juan C. Estévez"
Hello,
I have a malfunction in 1.10.0cvs (30/3/2015) on Windows 8.1
If you try to omit variables of a estimated model with the sequential
option, changing the p-value to 0.05 (intead of 0.10), Gretl gets into a
loop (?) and indicates 'Out of memory' after a cuple of minutes blocking
the computer.
I tested with the banks91. gdt and the anscome.gdt and find problems
with German, Portuguese and Galician (mine) language. No problems with
Italian, English and Spanish. May be due to the comma in the box with
the p-value in former languages.(?)
Best regards.
--
Juan C. Estévez
Dpto. Economía cuantitativa
USC
9 years
spurious "save changes" dialog
by Sven Schreiber
hello,
I think I've found a slight GUI bug, in a Windows snapshot, which I
think is related to the introduction of tabbed windows in the script editor:
- have one script open with unsaved changes
- click the "open" button
- gretl pops up a dialog asking if changes should be saved; but this
makes sense only if the current window tab were to be replaced
- and if I answer "no" (or "cancel"?) and open the second script then
the changes are saved anyway it seems-
thanks,
sven
9 years, 1 month
Feature request: loop foreach with arrays
by Sven Schreiber
Hello again,
I think the introduction of the array type kind of begs for an extension
of the "foreach" loop variant.
Something like this:
<hansl>
matrices Ms = array(3)
loop foreach i Ms
$i = I(2)
endloop
</hansl>
I'm aware that the same thing could be achieved with
<hansl>
matrices Ms = array(3)
loop i=1..nelem(Ms)
Ms[i] = I(2)
endloop
</hansl>
so this is syntactic sugar and I admit that I'm influenced by Python's
"iterables" concept or whatever it's called.
One longer-term argument in favor of more "foreach" usage could be that
such a loop is almost by definition "parallelizeable"; it could be taken
to mean that the individual loop iterations are independent from each
other. I think something similar is happening with R's foreach package.
thanks,
sven
9 years, 1 month
Arrays as return type: uninformative error message
by Sven Schreiber
Hi,
I'm trying out the new array types. And I've noticed that the error
message here is much less informative than in the analogous case where
for example a scalar would be expected.
<hansl>
function matrices hello (matrix in)
print "hi"
return in # wrong type
end function
hello(I(3))
</hansl>
Gretl snapshot from March 17th just says "data error".
thanks,
sven
9 years, 1 month
local comma in gretlcli.exe
by Sven Schreiber
Hi,
I noticed that when I use gretlcli.exe (which I don't do very often), in
the output I get numbers with local decimal separator comma, even though
in the (GUI) settings I have disabled the local comma.
Is that expected? If so, how does one switch off the comma for the CLI?
I know about the --english option, but I don't necessarily want to
change the language (although that would be ok as a workaround).
Or is it a bug?
thanks,
sven
9 years, 1 month
minor issue with seq()
by Sven Schreiber
Hi,
consider this:
matrix a = seq(1, 10, 0.5)
which gives an illegal argument error. I understand why that is, but the
doc says the 3rd argument must be positive and fractional stuff is
ignored. So I guess the doc should be changed to say it must be \geq 1.
thanks,
sven
9 years, 1 month
minus minus (was Re: [Gretl-users] why the error)
by Allin Cottrell
I'm sparing gretl-users the gory detail ;-)
On Sat, 14 Mar 2015, Sven Schreiber wrote:
> Am 14.03.2015 um 15:15 schrieb Allin Cottrell:
>> On Sat, 14 Mar 2015, Sven Schreiber wrote:
>
>>>>> list X=dummify(Z5) --drop-first
>>>> "
>
>>>
>>> Remark for Allin and Jack:
>>> BTW, I think the error message is strange insofar as IMO the parser
>>> should complain already about the "--" in there, not about the "drop"
>>> word, no? But perhaps this has been changed since last release.
>>
>> The "--" is in principle OK if interpreted as "minus minus", as in "y =
>> f(x) --a".
>
> Right. So if by coincidence "drop" and "first" were both existing
> scalars (or even series?) then no error would be issued and the
> expression would be read as:
>
> list X = dummify(Z5) + drop - first
>
> Because "drop" and "first" are not reserved words AFAICS. Maybe I'm
> being paranoid, but somehow this makes me nervous...
Yes, the statement would be read pretty much as you say. However,
"drop" and "first" will not be the names of series in the list
created by dummify(Z5), nor in fact by any invocation of dummify().
What if they're the names of scalars? Well, it's possible to cook up
a case where something of the sort appears to "work":
<hansl>
open data4-1
list X = 1 2 3
list X print
scalar drop = -4
scalar first = 3
list Y = X --drop-first
list Y print
</hansl>
This actually exposes a little bug. The "+" operator is not
recognized for adding a term to a list (simple concatentation is how
that's supposed to work), but when it's disguised as "--" it somehow
slips through, although it doesn't have the effect of adding series
number 4 to list Y. I'll take a look at fixing that.
On your broader point -- something that's really an error from the
user's point of view may under certain conditions go through as a
totally unintended command -- well, I think that's the price to be
paid for flexibility. I don't think we want to be saying to users
"Did you really mean minus minus?"
Allin
9 years, 1 month
some missing syntax coloring
by Sven Schreiber
hi,
the following terms are not syntax-colored in the latest snapshot:
- equations
- endog
- instr
and from the new plot...end plot block:
- option(s)
- literal
Don't know if the plot options "with-lines" etc. should also be colored
(without the leading double-dash I mean).
thanks,
sven
9 years, 1 month
System spec dialog
by Sven Schreiber
Hi,
another new discovery for me after all these years: There is a nice
context menu in the system spec dialog. I propose to give a hint in the
subtitle of the dialog which now says "please consult the help" and
could be extended with "... and right-click to paste common keywords" or
somesuch.
thanks,
sven
9 years, 1 month
wiki options
by Sven Schreiber
Hi, especially Jack,
I just noticed that Sourceforge seems to offer a project wiki. So
perhaps the existing wiki could be migrated (without the obsolete
content) to sourceforge. However, I don't know about the feature set,
whether something is missing that we would require. OTOH the current
wiki doesn't seem to be used much, so I guess not many features are needed.
I guess I could administrate that new wiki (if so desired), perhaps that
would also lead to me looking at the issue trackers more often.
Would that save you any work and/or make the wiki more useful?
cheers,
sven
9 years, 1 month
