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  Array subsetting (\code{\link{[}}) performs this reduction unless used
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  Array subsetting (\code{\link{[}}) performs this reduction unless used
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  with \code{drop = FALSE}, but sometimes it is useful to invoke
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  with \code{drop = FALSE}, but sometimes it is useful to invoke
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  \code{drop} directly.
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  \code{drop} directly.
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}
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}
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\seealso{
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\seealso{
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  \code{\link{drop1}} which is used for dropping terms in models.
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  \code{\link[stats]{drop1}} which is used for dropping terms in models.
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}
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}
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\examples{
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\examples{
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dim(drop(array(1:12, dim=c(1,3,1,1,2,1,2))))# = 3 2 2
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dim(drop(array(1:12, dim=c(1,3,1,1,2,1,2))))# = 3 2 2
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drop(1:3 \%*\% 2:4)# scalar product
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drop(1:3 \%*\% 2:4)# scalar product
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}
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}