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| From | "Parham, Robert" <Robert.Parham@simon.rochester.edu> |
| To | "'statalist@hsphsun2.harvard.edu'" <statalist@hsphsun2.harvard.edu> |
| Subject | Re: st: Mata invalid opcode error message |
| Date | Thu, 13 Mar 2014 23:00:34 +0000 |
Nick, thank you for the swift reply. I verified in advance that classes are supported on Stata 11. Googling only came after that :) I further verified and no problems arise when using Stata 13.1. I'm going to assume this is a problem with the implementation of classes in Stata 11 and move on. Thanks again for the reply, Robert. On 12 Mar 2014 09:03, Nick Cox <njcoxstata@gmail.com> wrote: > >Classes weren't in Mata from the beginning. That may be the nub of the >problem here. The answer lies not in Googling, but in looking at >documentation for Stata 11, to see whether it supported classes in >Mata. > >Nick >njcoxstata@gmail.com > > >On 12 March 2014 03:52, Parham, Robert ><Robert.Parham@simon.rochester.edu> wrote: >> Hi Statalisters, >> >> 1. I'm attempting to pack a Mata class into an mlib file. >> 2. I follow the best practices for doing so from [M-3] mata mlib (which doesn't mention classes directly) and [M-2] struct. >> 3. I receive an error message: "revpgm: invalid opcode 158" >> 4. This specific string gets 0 Google hits >> 5. This only happens on Stata 11, not on Stata 12 (where all is fine and well), haven't tried it on Stata 13 yet. >> >> The offending code: >> --BEGIN CODE-- >> mata: mata clear >> do "Symbolic.mata" >> >> mata: >> mata mlib create lEW , replace >> mata mlib add lEW Symbolic() >> mata mlib index >> end >> --END CODE- >> >> The error is thrown on the "mata mlib add lEW Symbolic()" command. >> >> Has anyone encountered something like it? Ideas on how to investigate? I'd like the code to be backward compatible to Stata 11, if possible. >> >> Thanks! >> Robert >> >> p.s. the Symbolic() class implements the symbolic (analytical) algebra over the multivariate polynomial ring with coefficients in the complex field. It can be thought of as an extension of the [M-5] polyeval() suite to the multivariate case, and packed in a class so it behaves like a data type. If anyone is interested in having a look, a link to the GitHub is on my website. Symbolic() is great for calculating analytical gradients and Hessians of complicated or auto-generated functions. >> >> >> --- >> http://kn.owled.ge * * For searches and help try: * http://www.stata.com/help.cgi?search * http://www.stata.com/support/faqs/resources/statalist-faq/ * http://www.ats.ucla.edu/stat/stata/