8:26 p.m.
Dear gretl users,
I am struggling with the following problem:
<hansl>
set echo off
set messages off
open denmark
list ttt = LRM LRY
scalar vars = nelem(ttt)
varnames = varname(ttt)
loop i=1..vars #I need to run a
loop over the sequence 1 to vars...
print "$i" #because
simply assume I want to print number $i
sprintf astr$i "%s", varnames($i) #And I need to generate a
string astr$i with the name of the i'th series in list ttt, but I dont know
how to access it
printf "%s", @astr$i
endloop
<\hansl>
I already know how to obtain a string with the variables name using the
'foreach'-loop but this does not help in my case:
<hansl>
set echo off
set messages off
loop foreach i ttt
sprintf astr "%s", "$i"
print astr
endloop
<\hansl>
Does anybody know a solution to this issue?
Thanks in advance!
Artur
8:55 p.m.
On Tue, 12 Jun 2012, artur tarassow wrote:
I am struggling with the following problem:
[Wide comments stripped out of script: it's helpful if you don't
assume that people are reading mail in a window that's hundreds of
columns wide.]
<hansl>
set echo off
set messages off
open denmark
list ttt = LRM LRY
scalar vars = nelem(ttt)
varnames = varname(ttt)
loop i=1..vars
print "$i"
sprintf astr$i "%s", varnames($i)
printf "%s", @astr$i
endloop
<\hansl>
Corrected loop:
loop i=1..vars
print "$i"
sprintf astr$i "%s", varname(i)
printf "%s\n", astr$i
endloop
There's no function "varnames()" but there is a "varname()".
Using "i" rather than "$i" as an argument to varname is not really a
correction, or only a stylistic one: no need to use string
substitution when it's a numerical value you want. And using
@astr$i instead of astr$i as an argument to printf is not
currently an error but arguably it should be one. In that position
you really want a string literal (in double quotes) or the name of a
string variable, and @astr$i is neither.
Off-topic, but "<\hansl>" would be an error if you were writing XML
rather than just pseudo-XML ;-)
Allin Cottrell
11:34 a.m.
Hey Allin,
thanks for replying. But it is not exactly what I need. In your example
'sprintf astr$i "%s", varname(i)' generates a string with the name of a
variable with the ID 'i' from the loaded dataset. But I need a string with
the name of the i'th variable in a list.
For example, the following returns a string containing the names of the
variables in the list in each round, but I need in the first round the name
of the first variable in ttt, in the second round the name of the second
variable in ttt and so on...
<hansl>
list ttt = LRM LRY
scalar vars = nelem(ttt)
loop i=1..vars
print "$i"
sprintf astr$i "%s", varname(ttt)
printf "%s\n", astr$i
endloop
<hansl>
Artur
2012/6/12 Allin Cottrell <cottrell(a)wfu.edu>
On Tue, 12 Jun 2012, artur tarassow wrote:
> I am struggling with the following problem:
[Wide comments stripped out of script: it's helpful if you don't
assume that people are reading mail in a window that's hundreds of
columns wide.]
> <hansl>
> set echo off
> set messages off
> open denmark
> list ttt = LRM LRY
> scalar vars = nelem(ttt)
> varnames = varname(ttt)
>
> loop i=1..vars
> print "$i"
> sprintf astr$i "%s", varnames($i)
> printf "%s", @astr$i
> endloop
> <\hansl>
Corrected loop:
loop i=1..vars
print "$i"
sprintf astr$i "%s", varname(i)
printf "%s\n", astr$i
endloop
There's no function "varnames()" but there is a "varname()".
Using "i" rather than "$i" as an argument to varname is not really a
correction, or only a stylistic one: no need to use string
substitution when it's a numerical value you want. And using
@astr$i instead of astr$i as an argument to printf is not
currently an error but arguably it should be one. In that position
you really want a string literal (in double quotes) or the name of a
string variable, and @astr$i is neither.
Off-topic, but "<\hansl>" would be an error if you were writing XML
rather than just pseudo-XML ;-)
Allin Cottrell
_______________________________________________
Gretl-users mailing list
Gretl-users(a)lists.wfu.edu
http://lists.wfu.edu/mailman/listinfo/gretl-users
12:56 p.m.
New subject: varnames in loop
On Wed, 13 Jun 2012, artur tarassow wrote:
thanks for replying. But it is not exactly what I need. In your
example
'sprintf astr$i "%s", varname(i)' generates a string with the name of
a
variable with the ID 'i' from the loaded dataset. But I need a string with
the name of the i'th variable in a list.
For example, the following returns a string containing the names of the
variables in the list in each round, but I need in the first round the name
of the first variable in ttt, in the second round the name of the second
variable in ttt and so on...
<hansl>
list ttt = LRM LRY
scalar vars = nelem(ttt)
loop i=1..vars
print "$i"
sprintf astr$i "%s", varname(ttt)
printf "%s\n", astr$i
endloop
<hansl>
Then:
<hansl>
open denmark.gdt -q
list ttt = LRM LRY
string vname
loop foreach i ttt -q
sprintf vname "astr%d", i
string @vname = "$i"
print @vname
endloop
</hansl>
Now you have astr1 = "LRM", astr2 = "LRY".
Allin
4:32 p.m.
New subject: Two-Step dynamic panel system GMM
Hi All,
I have a few qualms with the output of 'Two-Step dynamic panel system
GMM'. Normally I need three information criteria upon regression: Test for AR(2)
errors; Sargan over-identification(OIR) test and Wald (joint) test. However quite often,
just two pairs of the information criteria appear in the output: i.e, either the first,
second or third of the information criteria is absent. I have been nursing following:
1)when the first(Test for AR(2) errors) is absent in the output, I take it the coefficient
of autocorrelation is not significant(which at times is not the case; pushing me to
remodel the equation);
2) if the third(Wald test for joint significance of estimated coefficients) is missing, I
assume the estimated coefficients are significant from a visual interpretation;
3) the absence of the second(Sargan OIR test) in certain regression outputs leaves me
weary about the validity of the instruments.
Could a guru here elucidate these qualms for me?
Cheers
5:53 p.m.
New subject: Two-Step dynamic panel system GMM
On Wed, 13 Jun 2012, Anutechia Asongu wrote:
I have a few qualms with the output of 'Two-Step dynamic
panel system GMM'. Normally I need three information
criteria upon regression: Test for AR(2) errors; Sargan
over-identification(OIR) test and Wald (joint) test. However
quite often, just two pairs of the information criteria
appear in the output: i.e, either the first, second or third
of the information criteria is absent.
If any of these tests are absent, it means it was not
possible to compute the test in question. With the AR test it
can happen that there are no relevant data on which to base
the test; with the Wald test it can happen that the relevant
portion of the covariance matrix is singular to machine
precision; I'm not sure why the Sargan test might fail.
However, none of these tests fail in any of my dynamic panel
test cases, so it's anomalous that they're failing on your
data. Perhaps you could send me a dataset and a model
specification and I'll take a look.
Allin Cottrell
5:59 p.m.
New subject: varnames in loop
Hey Allin,
this gave some intuition into the problem and I solved it.
Thank you again! ;-)
Cheers,
Artur
2012/6/13 Allin Cottrell <cottrell(a)wfu.edu>
On Wed, 13 Jun 2012, artur tarassow wrote:
> thanks for replying. But it is not exactly what I need. In your example
> 'sprintf astr$i "%s", varname(i)' generates a string with the name
of a
> variable with the ID 'i' from the loaded dataset. But I need a string
with
> the name of the i'th variable in a list.
> For example, the following returns a string containing the names of the
> variables in the list in each round, but I need in the first round the
name
> of the first variable in ttt, in the second round the name of the second
> variable in ttt and so on...
>
> <hansl>
> list ttt = LRM LRY
> scalar vars = nelem(ttt)
> loop i=1..vars
> print "$i"
> sprintf astr$i "%s", varname(ttt)
> printf "%s\n", astr$i
> endloop
> <hansl>
Then:
<hansl>
open denmark.gdt -q
list ttt = LRM LRY
string vname
loop foreach i ttt -q
sprintf vname "astr%d", i
string @vname = "$i"
print @vname
endloop
</hansl>
Now you have astr1 = "LRM", astr2 = "LRY".
Allin
_______________________________________________
Gretl-users mailing list
Gretl-users(a)lists.wfu.edu
http://lists.wfu.edu/mailman/listinfo/gretl-users
4583
days inactive
4584
days old
6 comments
3 participants
participants (3)
-
Allin Cottrell -
Anutechia Asongu -
artur tarassow