Bookmark and Share

Notice: On March 31, it was announced that Statalist is moving from an email list to a forum. The old list will shut down at the end of May, and its replacement, statalist.org is already up and running.


[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: st: Re: RePEc:boc:bocode:s457480a / spgmmxt


From   Nick Cox <njcoxstata@gmail.com>
To   statalist@hsphsun2.harvard.edu
Subject   Re: st: Re: RePEc:boc:bocode:s457480a / spgmmxt
Date   Fri, 7 Dec 2012 18:33:18 +0000

The -divide()- function referred to from -rpnfcn- (SSC) is

real matrix divide(real matrix x, real matrix y)
{
  return(x :/ y)
}

This doesn't appear to be needed at all for the purposes of -spgmmxt-,
and elementwise division could just be implemented by :/  (which is
built-in to Mata, as Mata users will know).

Nick


On Fri, Dec 7, 2012 at 6:09 PM, Christopher Baum <kit.baum@bc.edu> wrote:
> <>
> On Dec 6, 2012, at 9:23 PM, MHA Ridhwan wrote:
>
>> Hello,
>> It is really appreaciated to see Spatial econ. in Stata recently.
>> Anyway I have been trying to run SPGMMXT, but it has failed and the message I got as below:
>>
>> ==============================================================================
>> * Spatial Panel Autoregressive Generalized Method of Moments (SPGMM)
>> ==============================================================================
>> ………………………………………………………………..
>>                  <istmt>:  3499  divide() not found
>> r(3499);
>> I am wondering what should I do to fix this problem.
>> Fyi I have already defined:  spweightxt as well.
>>
>> Thanks.
>>
>> Regards,
>> Ridhwan
>>
>>
> It appears that the spgmmxt module makes use of a Mata library included in the RPNFCN package, which is not listed as a dependency in the SPGMMXT package. As the author of SPGMMXT has produced dozens of similarly-named routines, I am unsure which might need this library and which might not. Hopefully he can provide a clarification. The examples in SPGMMXT worked on my machine, as for whatever reason I already have this library installed:
>
> : mata desc using lrpn
> (library contains 19 members)
>
>
>       # bytes   type                        name and extent
> -------------------------------------------------------------------------------
>           608   auto real matrix            MCatnode()
>           200   auto real matrix            MCatwt()
>           128   auto real matrix            Sexp()
>           184   auto real matrix            Swei()
>            88   auto real matrix            add()
>           440   auto real scalar            anyeqpt()
>            88   auto real matrix            divide()
>            80   auto real matrix            enter()
>           152   auto real matrix            fexp()
>           336   auto real matrix            fwei()
>           104   auto real colvector         intres()
>            88   auto real matrix            product()
>           120   auto pointer vector         rotst()
>         1,664   auto real matrix            rpnfcn()
>            88   auto real matrix            subtract()
>           104   auto pointer vector         swapst()
>           488   auto real matrix            tlMCatnode()
>           496   auto real matrix            tlMCatwt()
>            56   auto real matrix            tostack()
> -------------------------------------------------------------------------------
>

*
*   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/


© Copyright 1996–2014 StataCorp LP   |   Terms of use   |   Privacy   |   Contact us   |   Site index