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From | Ajita Atreya <ajita63@hotmail.com> |
To | <statalist@hsphsun2.harvard.edu> |
Subject | st: spmat idistance error |
Date | Fri, 27 Jan 2012 19:27:42 +0000 |
Hi, I have 24,000 observations on property prices. I am trying to create an inverse distance matrix with truncation (200m) to use in spreg command. I used the following code to create inverse distance matrix: spmat idistance longitude latitude, id(id) dfunction(dhaversine) vtruncate(1/.2) normalize(minmax) banded The matrix was created once but when I re did it I started getting the error as: Object not created-bands must be<=5516 The model I am using is : spreg g2sls lnprice ........, id(id) dlmat(matrixname) elmat(matrixname) I also get error messages as: Mata is out of memory Please suggest me how can I handle this matrix thing...Is it the memory of stata that is creating the problem??? PS. I am using stata12 and it works fine when I create contiguity matrix instead of inverse distance * * For searches and help try: * http://www.stata.com/help.cgi?search * http://www.stata.com/support/statalist/faq * http://www.ats.ucla.edu/stat/stata/