[R] lda

From: Pieter Vermeesch <pieter.vermeesch_at_erdw.ethz.ch>
Date: Mon 16 Oct 2006 - 17:15:59 GMT


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?

Thanks!

Pieter



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