So you have moved from J6 on Windows to J7 on Mac? Looking at the manifest for math/lbfgs it has only been released for Windows and J6. http://www.jsoftware.com/wsvn/addons/trunk/math/lbfgs/manifest.ijs
To get it working on Mac (or Linux) the .dylib or .so versions of the .dll will be required. If someone is interested in making this available then the following C port of the original Fortran code looks promising and should be easier to hook up to J. http://www.chokkan.org/software/liblbfgs/ On Sat, Sep 8, 2012 at 8:44 PM, Piet de Jong <pietd...@gmail.com> wrote: > Thanks for your help. I got deoptim to work with my minimization problem. > > I run J7 on a Mac. > Are *.dll files supported on a Mac? > Know almost nothing about getting a ddl to work with J. > Thanks again for your help. > > > > > On Sat, Sep 8, 2012 at 7:19 AM, Ric Sherlock <tikk...@gmail.com> wrote: >> On Sep 7, 2012 10:28 PM, "Piet de Jong" <pietd...@gmail.com> wrote: >>> >>> Thanks for all the help. This has got me going just fine (at least for >> now) >> Good to hear. >> >>> lgbfgs used to work find for me under J6. So I miss it under J7. >>> Advantage was that it had derivatives and Hessians which are >>> important for likelihood calculations in statistical problems. >> >> Have you tried running it on J7? You can down load it here >> http://www.jsoftware.com/wsvn/addons/trunk/math/lbfgs/ >> It may not take much, if anything, to get it running. Once running it can >> be released for J7. >> >>> One comment re deoptim. Why not define it as an adverb? >> I agree that an adverb seems like a natural fit but from memory (I wrote it >> 3 years ago and haven't used it recently) I had problems with the addon and >> the "problem" being in separate locales. Adverbs behave differently to >> verbs in that situation. >> >>> >>> On Fri, Sep 7, 2012 at 7:31 PM, Ric Sherlock <tikk...@gmail.com> wrote: >>> > By the way, if you use getDEoptim instead of deoptim the output is as >>> > a table with labels in the first column and maybe easier to interpret >>> > i.e. >>> > getDEoptim 'ssq_base_'; _3 3 >>> > >>> > On Fri, Sep 7, 2012 at 8:43 PM, Ric Sherlock <tikk...@gmail.com> wrote: >>> >> Yes Mike has got you going. If you haven't already I'd recommend >>> >> looking through the test script which I've fixed the link to on the >>> >> wiki page for the addon. It has some simple examples there. >>> >> >>> >> http://www.jsoftware.com/jwiki/Addons/math/deoptim >>> >> >>> >> Glad to see that someone else has use for this. >>> >> >>> >> I suspect that the LBFGS routine just needs testing and updating for >>> >> J7. I admit that I never got it going on J6 so am not sure what is >>> >> required. >>> >> >>> >> On Fri, Sep 7, 2012 at 8:23 PM, Mike Day <mike_liz....@tiscali.co.uk> >> wrote: >>> >>> New to me but I've just had a look, in J602. >>> >>> >>> >>> As you said, there seem to be a number of issues: >>> >>> 1) your provided function needs to return a scalar result. >>> >>> (+/@*:) 2 3 >>> >>> 4 9 >>> >>> (+/@:*:) 2 3 >>> >>> 13 >>> >>> So ssq should be +/@:*: >>> >>> >>> >>> 2) The locale for deoptim starts as pdeoptim >>> >>> One way round appears to be to do >>> >>> deoptim 'ssq_base_';_3 3 >>> >>> ====================== >>> >>> Generation: 1 >>> >>> Best Value: 0.5667 >>> >>> Best Var set: >>> >>> _0.2958 _0.6922 >>> >>> ====================== >>> >>> Generation: 50 >>> >>> Best Value: 0.0000 >>> >>> Best Var set: >>> >>> 0.0000 0.0000 >>> >>> ====================== >>> >>> Generation: 100 >>> >>> Best Value: 0.0000 >>> >>> Best Var set: >>> >>> 0.0000 0.0000 >>> >>> +------------------------+-----------+---- >>> >>> |1.06998e_15 _3.06813e_15|1.05583e_29|2020| >>> >>> | | | | >>> >>> ....... >>> >>> >>> >>> Perhaps that's enough to get you going. >>> >>> >>> >>> As for lbfgs, it's in my addons\math folder >>> >>> under J602. but not under J701. Perhaps the >>> >>> addons gurus can tell you why. >>> >>> >>> >>> Mike >>> >>> >>> >>> >>> >>> On 07/09/2012 5:35 AM, Piet de Jong wrote: >>> >>>> >>> >>>> I 'm trying to use the "deoptim" math addon package. >>> >>>> >>> >>>> However can't figure it out. Tried the following trite example to >>> >>>> understand how things work. >>> >>>> >>> >>>> >>> >>>> NB. Minimize the sum of squares within the range _3 to 3 >>> >>>> >>> >>>> require 'math/deoptim' >>> >>>> >>> >>>> ssq=:+/@*: >>> >>>> deoptim 'ssq';_3 3 >>> >>>> >>> >>>> This fails for a variety of reasons which I cannot seem to >> grasp/fix up. >>> >>>> >>> >>>> Can anyone help? Once I can figure out a simple example like this I >>> >>>> think I will be able to >>> >>>> implement it on non trite examples. >>> >>>> >>> >>>> Also what has happened to the LBFGS minimization routine? >>> >>>> >> ---------------------------------------------------------------------- >>> >>>> For information about J forums see >> http://www.jsoftware.com/forums.htm >>> >>>> >>> >>> >>> >>> ---------------------------------------------------------------------- >>> >>> For information about J forums see http://www.jsoftware.com/forums.htm >>> > ---------------------------------------------------------------------- >>> > For information about J forums see http://www.jsoftware.com/forums.htm >>> >>> >>> >>> -- >>> Piet de Jong >>> -------------------------------------------------- >>> View my current research at >>> http://ssrn.com/author=619154 >>> -------------------------------------------------- >>> ---------------------------------------------------------------------- >>> For information about J forums see http://www.jsoftware.com/forums.htm >> ---------------------------------------------------------------------- >> For information about J forums see http://www.jsoftware.com/forums.htm > > > > -- > Piet de Jong > -------------------------------------------------- > View my current research at > http://ssrn.com/author=619154 > -------------------------------------------------- > ---------------------------------------------------------------------- > For information about J forums see http://www.jsoftware.com/forums.htm ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
