12:43 a.m.
Using the eigen function I obtain the matrix with eigenvalues
XXeig (5 x 1)
4.4676e+004 + 0.0000e+000i
5.9654e+003 + 0.0000e+000i
1.2180e-003 + 0.0000e+000i
1.0542e+002 + 0.0000e+000i
8.0995e+002 + 0.0000e+000i
If I select its icon, select "copy as csv..." and choose any of the
"comma / space / tab" options for separators, I get, when pasting into
an excel file,
44676.2059363678
0
5965.42208618647
0
0.00121802209740075
I understand that essentially it copies the first three eigenvalues but
understands as different rows the numbers to the left of the stand-alone
"+" sign.
So, since this is a 5 X 1 matrix, it exhausts the row index at the
element 1.2180e-003.
Could that be fixed?
Thanks.
--
Alecos Papadopoulos PhD
Affiliate Researcher
Dpt of Economics, Athens University of Economics and Business
Foundation for Economic and Industrial Research (IOBE)
web: alecospapadopoulos.wordpress.com/
ORCID:0000-0003-2441-4550
12:51 a.m.
New subject: Fwd: Problem with copy-as-csv matrix with eigenvalues
"To the to the */right/* of the stand-alone "+" sign" I meant,
apologies
Alecos Papadopoulos PhD
Affiliate Researcher
Dpt of Economics, Athens University of Economics and Business
Foundation for Economic and Industrial Research (IOBE)
web: alecospapadopoulos.wordpress.com/
ORCID:0000-0003-2441-4550
-------- Forwarded Message --------
Subject: [Gretl-users] Problem with copy-as-csv matrix with eigenvalues
Date: Wed, 4 Mar 2026 02:43:15 +0200
From: Alecos Papadopoulos <papadopalex(a)aueb.gr>
Reply-To: Gretl list <gretl-users(a)gretlml.univpm.it>
To: Gretl list <gretl-users(a)gretlml.univpm.it>
Using the eigen function I obtain the matrix with eigenvalues
XXeig (5 x 1)
4.4676e+004 + 0.0000e+000i
5.9654e+003 + 0.0000e+000i
1.2180e-003 + 0.0000e+000i
1.0542e+002 + 0.0000e+000i
8.0995e+002 + 0.0000e+000i
If I select its icon, select "copy as csv..." and choose any of the
"comma / space / tab" options for separators, I get, when pasting into
an excel file,
44676.2059363678
0
5965.42208618647
0
0.00121802209740075
I understand that essentially it copies the first three eigenvalues but
understands as different rows the numbers to the left of the stand-alone
"+" sign.
So, since this is a 5 X 1 matrix, it exhausts the row index at the
element 1.2180e-003.
Could that be fixed?
Thanks.
--
Alecos Papadopoulos PhD
Affiliate Researcher
Dpt of Economics, Athens University of Economics and Business
Foundation for Economic and Industrial Research (IOBE)
web: alecospapadopoulos.wordpress.com/
ORCID:0000-0003-2441-4550
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9:39 a.m.
On 04/03/2026 01:43, Alecos Papadopoulos wrote:
Using the eigen function I obtain the matrix with eigenvalues
XXeig (5 x 1)
4.4676e+004 + 0.0000e+000i
5.9654e+003 + 0.0000e+000i
1.2180e-003 + 0.0000e+000i
1.0542e+002 + 0.0000e+000i
8.0995e+002 + 0.0000e+000i
If I select its icon, select "copy as csv..." and choose any of the
"comma / space / tab" options for separators, I get, when pasting into
an excel file,
44676.2059363678
0
5965.42208618647
0
0.00121802209740075
I understand that essentially it copies the first three eigenvalues
but understands as different rows the numbers to the left of the
stand-alone "+" sign.
So, since this is a 5 X 1 matrix, it exhausts the row index at the
element 1.2180e-003.
Could that be fixed?
I can reproduce the problem, it shouldn't be hard to fix. In the
meantime, you can circumvent the problem by defining
<hansl>
foo = Re(XXeig) ~ Im(XXeig)
</hansl>
That said, I see your eigenvalues are all real and positive, which means
that the matrix they come from is positive definite. If it's also
symmetric, you'll want to use the much more efficient specialised
function eigensym() function instead of eigen().
--
-------------------------------------------------------
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
-------------------------------------------------------
8:01 p.m.
Am 04.03.2026 um 10:39 schrieb Riccardo (Jack) Lucchetti:
On 04/03/2026 01:43, Alecos Papadopoulos wrote:
> Using the eigen function I obtain the matrix with eigenvalues
>
> XXeig (5 x 1)
>
> 4.4676e+004 + 0.0000e+000i
> 5.9654e+003 + 0.0000e+000i
> 1.2180e-003 + 0.0000e+000i
> 1.0542e+002 + 0.0000e+000i
> 8.0995e+002 + 0.0000e+000i
>
> If I select its icon, select "copy as csv..." and choose any of the
> "comma / space / tab" options for separators, I get, when pasting
> into an excel file,
>
> 44676.2059363678
> 0
> 5965.42208618647
> 0
> 0.00121802209740075
> ...
> Could that be fixed?
I can reproduce the problem, it shouldn't be hard to fix.
Following up on this topic, I have re-tested this with the recent
snapshot from March 12th, with mixed results:
- The original problem with "copy as csv..." is gone OK, gretl
intercepts this with a dialog box saying "matrix is complex".
- However, when I choose "view" (in the icon view, right-click on the
respective matrix symbol), then basically the same problem re-appears.
- Plus, when I choose "copy", then enter a name in the dialog window and
hit OK, I get _two_ new symbols in the icon view, both with the same new
chosen name. And the copy isn't correct, it contains the same
problematic stuff as in the OP.
Should I create a bug ticket?
thanks
sven
1:06 p.m.
On Sun, Mar 15, 2026 at 4:01 PM Sven Schreiber
<sven.schreiber(a)fu-berlin.de> wrote:
Following up on this topic, I have re-tested this with the recent
snapshot from March 12th, with mixed results:
- The original problem with "copy as csv..." is gone OK, gretl
intercepts this with a dialog box saying "matrix is complex".
- However, when I choose "view" (in the icon view, right-click on the
respective matrix symbol), then basically the same problem re-appears.
- Plus, when I choose "copy", then enter a name in the dialog window and
hit OK, I get _two_ new symbols in the icon view, both with the same new
chosen name. And the copy isn't correct, it contains the same
problematic stuff as in the OP.
These issues are now fixed in git. BTW, the matrix copy -- though it
certainly shouldn't have been doubled -- was correct; it's just the
printing that was wrong.
Allin
27
days inactive
39
days old
5 comments
4 participants
participants (4)
-
Alecos Papadopoulos -
Cottrell, Allin -
Riccardo (Jack) Lucchetti -
Sven Schreiber