Re: [Gretl-users] Passing a list of series to a function

-----Original Message----- From: gretl-users-bounces(a)lists.wfu.edu [mailto:gretl-users- bounces(a)lists.wfu.edu] On Behalf Of Riccardo (Jack) Lucchetti Sent: Monday, July 29, 2013 3:33 AM To: Gretl list Subject: Re: [Gretl-users] Passing a list of series to a function On Mon, 29 Jul 2013, Logan Kelly wrote: > Hello, > > I am using Gretl 1.9.12cvs on WIN 8. Is there a way to pass a list > series to a function? I used the following function declaration: > > function void dplot(list lstDIV, string filetype, string strTitle[null], string strDisc[null]) > string ddat = varname(lstDIV[1]) > sprintf send "%s", date(firstobs(@ddat)) end function > > but get this error > > The symbol 'DQ_us' is undefined > *** error in function dplot, line 24 >> sprintf send "%s", date(firstobs(DQ_us)) > > So I am able to pass the list but the individual series are not > accessible? Anyway around this? Using series names from a list within a function may be tricky, because of possible name collisions. If I understood correctly what you want to do, I suppose you can get some inspiration from the following small script: <hansl> function void myfunc(list X, scalar i) names = strsub(varname(X),","," ") printf "The %d-th series in %s is %s\n", i, argname(X), strsplit(names, i) end function open AWM -q list A = 7 8 9 10 11 myfunc(A, 4) </hansl> ------------------------------------------------------- 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 -------------------------------------------------------