>
> In fact, I'm beginning to thing that we ought to provide a Julia package
> ("GretlLink"?) on pkg.julialang.org for communication with gretl with
> functions such as the above and more, ideally written by a specialist
> (Andreas, are you interested?). So in practice, a "using GretlLink"
> statement would be implicit every time we enter a "foreign" environment,
> possibly preceded by a 'Pkg.Add("GretlLink")' if necessary.I'd like to help here, but I'm also bit swamped. I'm pretty up to date on the Julia side, but I'm not sure what it would take to make a good foreign environment in Gretl. If either of you can explain what is supposed to happen on the Julia side then I can probably do it without too much difficulty. On Thu, Jan 21, 2016 at 3:38 AM, <oleg_komashko(a)ukr.net> wrote: > A couple of Gretl scripts for > the same set of tests > (parseintperf(),mandelperf(),pisum()) > Oleh > > 21 січня 2016, 09:29:49, від "Riccardo (Jack) Lucchetti" < > r.lucchetti(a)univpm.it>: > > On Wed, 20 Jan 2016, Allin Cottrell wrote: > > > Perhaps we should offer a prize for the first example of actual time-saving > > (and/or improvement in accuracy) in sending a calculation of the sort that > > might be required in gretl out to julia for computation. > > Easy: just take Oleh's recursion example. > > <hansl> > set echo off > set messages off > > function scalar fib(scalar n) > return n<2 ? n : fib(n-1) + fib(n-2) > end function > > set stopwatch > eval fib(30) > native = $stopwatch > > foreign language=julia > function fib(n) > if n<2 > return n > else > return fib(n-1)+fib(n-2) > end > end > println(fib(30)) > end foreign > julia = $stopwatch > > print native julia > </hansl> > > <output> > 832040 > 832040 > > > native = 71.920384 > > julia = 4.4912745 > </output> > > ------------------------------------------------------- > 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 > ------------------------------------------------------- > > _______________________________________________ > Gretl-devel mailing > listGretl-devel(a)lists.wfu.eduhttp://lists.wfu.edu/mailman/listinfo/gretl-devel > > ! > > _______________________________________________ > Gretl-devel mailing list > Gretl-devel(a)lists.wfu.edu > http://lists.wfu.edu/mailman/listinfo/gretl-devel >
In fact, I'm beginning to thing that we ought to provide a Julia package ("GretlLink"?) on pkg.julialang.org for communication with gretl with functions such as the above and more, ideally written by a specialist (Andreas, are you interested?). So in practice, a "using GretlLink" statement would be implicit every time we enter a "foreign" environment, possibly preceded by a 'Pkg.Add("GretlLink")' if necessary.
I'd like to help here, but I'm also bit swamped. I'm pretty up to date on the Julia side, but I'm not sure what it would take to make a good foreign environment in Gretl. If either of you can explain what is supposed to happen on the Julia side then I can probably do it without too much difficulty.
On Thu, Jan 21, 2016 at 3:38 AM, <[email protected]> wrote:
A couple of Gretl scripts forthe same set of tests(parseintperf(),mandelperf(),pisum())Oleh21 ÑÑÑÐ½Ñ 2016, 09:29:49, вÑд "Riccardo (Jack) Lucchetti" <[email protected]>:On Wed, 20 Jan 2016, Allin Cottrell wrote: > Perhaps we should offer a prize for the first example of actual time-saving > (and/or improvement in accuracy) in sending a calculation of the sort that > might be required in gretl out to julia for computation. Easy: just take Oleh's recursion example. <hansl> set echo off set messages off function scalar fib(scalar n) return n<2 ? n : fib(n-1) + fib(n-2) end function set stopwatch eval fib(30) native = $stopwatch foreign language=julia function fib(n) if n<2 return n else return fib(n-1)+fib(n-2) end end println(fib(30)) end foreign julia = $stopwatch print native julia </hansl> <output> 832040 832040 native = 71.920384 julia = 4.4912745 </output> ------------------------------------------------------- Riccardo (Jack) Lucchetti Dipartimento di Scienze Economiche e Sociali (DiSES) Università Politecnica delle Marche (formerly known as Università di Ancona) [email protected] http://www2.econ.univpm.it/servizi/hpp/lucchetti -------------------------------------------------------_______________________________________________ Gretl-devel mailing list [email protected] http://lists.wfu.edu/mailman/listinfo/gretl-devel!
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