9:08 a.m.
Dear Gretl Community,
In the hope that my question is not too silly: Is there a specific command to keep a
subset of variables and discard the rest?
I have large number of variables in my data set, but I only need a small subset of them. I
find that using the "delete" command works, but inefficiently: it would be much
easier just so save/keep/maintain/... the small number of variables I am interested in. In
other words, is there a complementary command to "delete"?
Thanks in advance,
Cruz
9:13 a.m.
Hi Cruz,
Am 25.05.19 um 11:08 schrieb cruz.echevarria(a)ehu.eus:
Dear Gretl Community,
In the hope that my question is not too silly: Is there a specific command to keep a
subset of variables and discard the rest?
No, no silly question at all.
I have large number of variables in my data set, but I only need a
small subset of them. I find that using the "delete" command works, but
inefficiently: it would be much easier just so save/keep/maintain/... the small number of
variables I am interested in. In other words, is there a complementary command to
"delete"?
Try this
<hansl>
open denmark.gdt -q
list keep = LRM IBO
list drop = dataset - keep
delete drop
</hansl>
Best,
Artur
2 p.m.
Am 25.05.2019 um 11:13 schrieb Artur Tarassow:
Am 25.05.19 um 11:08 schrieb cruz.echevarria(a)ehu.eus:
> but inefficiently: it would be much easier just so
> save/keep/maintain/... the small number of variables I am interested
> in. In other words, is there a complementary command to "delete"?
Try this
<hansl>
open denmark.gdt -q
list keep = LRM IBO
list drop = dataset - keep
delete drop
</hansl>
Or, since you mentioned "save", maybe it's worth pointing out that the
'store' command also accepts a list of variables. So you could simply do:
store myfile.gdt LRM IBO
(or: store myfile.gdt keep, with the 'keep' list defined as above)
at the end of your work with the data.
cheers
sven
2:20 p.m.
Hello Sven,
Thanks! Of course, it works. And, perhaps, this alternative is bit more
efficient at it requires one step less. I buy any of the two solutions
provided.
Warm regards,
Cruz
-----Mensaje original-----
De: Sven Schreiber [mailto:svetosch@gmx.net]
Enviado el: sábado, 25 de mayo de 2019 16:00
Para: gretl-users(a)gretlml.univpm.it
Asunto: [Gretl-users] Re: delete variables
Am 25.05.2019 um 11:13 schrieb Artur Tarassow:
Am 25.05.19 um 11:08 schrieb cruz.echevarria(a)ehu.eus:
> but inefficiently: it would be much easier just so
> save/keep/maintain/... the small number of variables I am interested
> in. In other words, is there a complementary command to "delete"?
Try this
<hansl>
open denmark.gdt -q
list keep = LRM IBO
list drop = dataset - keep
delete drop
</hansl>
Or, since you mentioned "save", maybe it's worth pointing out that the
'store' command also accepts a list of variables. So you could simply do:
store myfile.gdt LRM IBO
(or: store myfile.gdt keep, with the 'keep' list defined as above)
at the end of your work with the data.
cheers
sven
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2:17 p.m.
Hi Artur,
Thanks. It works. The willingness of Gretl expert users to help beginners is
really amazing. Thanks once again.
Regards,
Cruz
-----Mensaje original-----
De: Artur Tarassow [mailto:atecon@posteo.de]
Enviado el: sábado, 25 de mayo de 2019 11:13
Para: gretl-users(a)gretlml.univpm.it
Asunto: [Gretl-users] Re: delete variables
Hi Cruz,
Am 25.05.19 um 11:08 schrieb cruz.echevarria(a)ehu.eus:
Dear Gretl Community,
In the hope that my question is not too silly: Is there a specific command
to keep
a subset of variables and discard the rest?
No, no silly question at all.
I have large number of variables in my data set, but I only need a
small
subset of them. I find that using the "delete" command works, but
inefficiently: it would be much easier just so save/keep/maintain/... the
small number of variables I am interested in. In other words, is there a
complementary command to "delete"?
Try this
<hansl>
open denmark.gdt -q
list keep = LRM IBO
list drop = dataset - keep
delete drop
</hansl>
Best,
Artur
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To unsubscribe send an email to gretl-users-leave(a)gretlml.univpm.it
Website:
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1799
days inactive
1799
days old
4 comments
4 participants
participants (4)
-
Artur Tarassow -
Cruz A. Echevarria -
cruz.echevarria＠ehu.eus
-
Sven Schreiber