Pieter Vermeesch wrote:
> I'm trying to do a linear discriminant analysis on a dataset of three
> classes ("Affinities"), using the MASS library:
>
>> data.frame2 <- na.omit(data.frame1)
>>
>> data.ld = lda(AFFINITY ~ ., data.frame2, prior = c(1,1,1)/3)
>
> Error in var(x - group.means[g, ]) : missing observations in cov/cor
>
> What does this error message mean and how can I get rid of it?
What does str(data.frame2) tell us?
Uwe Ligges
> Thanks!
>
> Pieter
>
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