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covaeb
2009 Jun 25
2
crr - computationally singular
...)) :
system is computationally singular: reciprocal condition number = 1.28654e-24
This is obviously as a result of a problem with the data but apart
from dataset a having 1674 rows and dataset b having 701 rows there is
really no difference between them.
The code I am using is as follows where covaea and covaeb are matrices
of covarites, all coded as binary variables.
In case a:
> covaea <- cbind(sexa,fsha,fdra,nsigna,eega,th1a,th2a,stype1a,stype2a,stype3a,pgu1a,pgu2a,log(agea),firstinta/1000,totsezbasea)
> fita <- crr(snearma$with.Withtime,csaea,covaea,failcode=2,cencode=0)
and in...