Access elements of a list
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Is it possible to access elements of a list. I need the variable name-as a string-of the
i_th element of a list. Something like
string variable_name = varnam(ylist[i])
Thanks,
Logan Kelly
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2012/8/4 Logan Kelly <logan.kelly(a)uwrf.edu>
Is it possible to access elements of a list. I need the variable
name—as
a string—of the i_th element of a list. Something like
string variable_name = varnam(ylist[i])
Thanks,
Logan Kelly
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I suppose you want to use it in a gretl function. Assuming xlist is a list
containing the variables you are interested in, you may use:
loop foreach i xlist
string $i = xlist.$i
endloop
--
Ignacio Diaz-Emparanza
DEPARTAMENTO DE ECONOMÍA APLICADA III (ECONOMETRÍA Y ESTADÍSTICA)
UPV/EHU
Avda. Lehendakari Aguirre, 83 | 48015 BILBAO
T.: +34 946013732 | F.: +34 946013754
www.et.bs.ehu.es
On Sat, 4 Aug 2012, Logan Kelly wrote:
Is it possible to access elements of a list. I need the variable
name-as a string-of the i_th element of a list. Something like
string variable_name = varnam(ylist[i])
You can't directly index into a list but -- if the idiomatic form of
a "foreach" loop on the list is not suitable for your job -- you can
index into the matrix (vector) counterpart of the list:
matrix ymat = ylist
string variable_name = varname(ymat[i])
Allin Cottrell
On Sun, 5 Aug 2012, Allin Cottrell wrote:
On Sat, 4 Aug 2012, Logan Kelly wrote:
> Is it possible to access elements of a list. I need the variable name-as a
> string-of the i_th element of a list. Something like
>
> string variable_name = varnam(ylist[i])
You can't directly index into a list [...]
Actually, that seems a bit lame. Now in CVS and snapshots you
can do that -- the expression above should now work (apart
from the typo of "varnam" for "varname" ;-).
Allin Cottrell
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Logan Kelly