[R] Matrix to Vector

Spencer Graves spencer.graves at pdf.com
Tue Jul 1 18:37:42 CEST 2003

A matrix is a vector with a dim attribute.  The following should do what 
I understand of you to be asking:

sel <- (Mat>1000)
Vec <- Mat[sel]
n.excl <- length(Mat)-length(Vec)

hope this helps.  spencer graves

Arun Horne wrote:
> Hello,
> I have a matrix of values that I want to convert to a vector, but remove
> certain entries in the matrix first, i.e. in the vector I want every value
> in the matrix that is greater than 1000. I would also like to find out how
> many values are excluded in the transition from matrix to vector. Could
> someone tell me how this can be done?
> Thank you in advance
> Arun Horne
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