[R] Application of R and MNP

John Fox jfox at mcmaster.ca
Sun Jan 22 16:08:44 CET 2006

Dear Andy,

You appear to have 7 observations and 8 explanatory variables in the model.
You'd be in trouble even if this were a linear model fit by least squares.
Moreover, each observation has a different value of the response variable --
that, is the response has 7 levels. Did you really intend to do that?
Perhaps it would help to know what you want to do with these data.

I hope this helps,

John Fox
Department of Sociology
McMaster University
Hamilton, Ontario
Canada L8S 4M4

> -----Original Message-----
> From: r-help-bounces at stat.math.ethz.ch 
> [mailto:r-help-bounces at stat.math.ethz.ch] On Behalf Of Andy Wong
> Sent: Sunday, January 22, 2006 9:55 AM
> To: r-help at stat.math.ethz.ch
> Subject: [R] Application of R and MNP
> Dear all,
> I'm a new user of R and MNP.  Would anybody advise me what I 
> have done wrong to the input or data.  When I add the R7, it 
> said that there is an error "SWP:singular matrix".  I can add 
> up to R6 only.  Copy of the R console is attached for your reference.
> Thanks.
> Andy

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