[R] Error: object is not a matrix

[Albert Kim]

I have updated to R 1.5.1, but now get a new error, which appears to
have the same cause:

> AK.df <<- read.table("foo.data", col.names = c("Y","P","A","B","CLongFactorName"))
> AK.df$P <- as.factor(AK.df$P)
> attach(AK.df)

> AKanova.out <- aov(Y ~ A * B * CLongFactorName + Error(P + P:A + P:B +
P:CLongFactorName + P:A:B + P:A:CLongFactorName + P:B:CLongFactorName +
P:A:B:CLongFactorName), data=AK.df)

Error in eval(expr, envir, enclos) : couldn't find function "Error"

I can avoid the error by either of the following steps:
	1)  replace "CLongFactorName" with the shorter label "C"
	2)  reduce the number of terms in my Error formula.

Thanks
Al
--
Al Kim
Research Scientist
Department of Psychology
University of Washington, Box 351525
Seattle, WA. 98195, USA
E-Mail:  alkim at u.washington.edu;  Tel: (206)543-2395


On Thu, 22 Aug 2002, Albert Kim wrote:

>
> I'm running 1.4.1.  I'll try the latest version.
> Thanks,
> Al Kim
> Research Scientist
> Department of Psychology
> University of Washington, Box 351525
> Seattle, WA. 98195, USA
> E-Mail:  alkim at u.washington.edu;  Tel: (206)543-2395
>
>
> On 22 Aug 2002, Peter Dalgaard BSA wrote:
>
> > Albert Kim <alkim at u.washington.edu> writes:
> >
> > > I have reproduced this error in a number of ways, and the only common
> > > characteristic I can see to my actions is that the length of the call
> > > to 'aov' is always too long:  either one of the variable names is too
> > > long, or I include too many error terms, etc...).
> >
> > A similar error was fixed in 1.5.0. Which version are you using?
> >
> >     o   aov() and model.tables() were failing on multistrata models with
> >         excessively long Error formula. (PR#1315)
> >
> >
> > --
> >    O__  ---- Peter Dalgaard             Blegdamsvej 3
> >   c/ /'_ --- Dept. of Biostatistics     2200 Cph. N
> >  (*) \(*) -- University of Copenhagen   Denmark      Ph: (+45) 35327918
> > ~~~~~~~~~~ - (p.dalgaard at biostat.ku.dk)             FAX: (+45) 35327907
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