Re: [Gretl-users] sampling by restriction on a $i variable within a loop
Hi,
here is sample script that should help u further.
As a general point the $i is used for strings/stringsubstitution. In ur
code u are referring to numbers.
What u need to do is first is defining a list with these numbers and
then use the $i, but have a look:
<hansl>
open abdata.gdt
set echo off
set messages off
list xList = seq(3,5)
matrix alphas = zeros(nelem(xList),1)
loop foreach i xList --quiet
smpl $i>0 --restrict
ols $i lags(1,$i) --quiet
alphas[i] = $coeff
endloop
eval mean(alphas)
eval sd(alphas)
# compared to the --progressive switch
loop foreach i xList --progressive
smpl $i>0 --restrict
ols $i lags(1,$i)
endloop
<hansl>
Cheers
Leon
18.06.2013 19:57, Luis M. Carrascal:
Dear GRTL users,
Probably it is a stupid question, but ...
how can I restrict data analyses within a loop affecting several
response variables $i, when the restriction affects each variable $i?
the line "smpl $i > 0 --restrict" does not work within this
loop (from response variable 39 to response variable 145):
loop i=39..145 --progressive
smpl $i > 0 --restrict
quantreg {.95} $i const TMINstd TMINstd2 PRECmedINVstd PRECINVstd2
--robust
... more commands ...
endloop
PD: I have a very large sample size (n=1690)
Thanks you very much in advance
Luis M. Carrascal
http://www.lmcarrascal.eu/
email: lmcarrascal(a)mncn.csic.es <mailto:lmcarrascal@mncn.csic.es>
Dept. Biogeografía y Cambio Global
MNCN-Consejo Superior de Investigaciones Científicas
C/ Pinar 25, 3ª planta. 28006 Madrid. SPAIN
Tfno: 34 91 5668963, Fax: 91 5645078
_______________________________________________
Gretl-users mailing list
Gretl-users(a)lists.wfu.edu
http://lists.wfu.edu/mailman/listinfo/gretl-users
Attachments:
- attachment.html (text/html — 6.0 KB)