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Delete particular rows from matrix. (See related posts)

> x <- matrix(1:10,,2)
> x[x[,1]%in%c(2,3),]
> x[!x[,1]%in%c(2,3),]


from Peter Malewski or from Peter Dalgaard:

> mat[!(mat$first %in% 713:715),]
to r spss by hello on Thu May 26 21:16:32 -0400 2005

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