Package questions to package maintainers please.
"non-positive fis" is not an error, it is a warning -- if the number
of negative fis
is large relative to the sample size then there is some reason to
doubt the
plausibility of the specification of the model specified by the rq
formula.
Hi,
Could you please explain what is non-positive fis error? I have been trying to
use quantile regression (rq) procedure and I keep ending up with this error. I
haven't been able to find an explanation for the same.
Best Regards,
Arti
Arti Mann
Ph.D. Student
Department of Information Systems
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