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| From | Nick Cox <njcoxstata@gmail.com> |
| To | statalist@hsphsun2.harvard.edu |
| Subject | Re: st: about -cholesky()- |
| Date | Tue, 22 May 2012 14:06:20 +0100 |
-prvalue- is a user-written command, whose provenance you do not give. My guess is that your problem is a side-effect of incorrect syntax. You use - where = seems needed for the -x()- option. Nick On Tue, May 22, 2012 at 1:59 PM, Huaandrew <andrew0845@hotmail.com> wrote: > I tried to use -prvalue- to make some prediction but ended up with the following error message in Stata: > . prvalue, x(NYTCongyrstd -1.8190) > > cholesky(): matrix has missing values > > r(504); > > > Would you please tell me what might be the possible reasons for that error? > I searched online but didn't find how Stata implements cholesky decomposition in -prvalue-. * * 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/