I have a 280,000 x 11 matrix with various values and many NA values. What I
would like to do is get a vector of every unique value in the matrix.
For example:
X = [ 1 2 NA
4 3 1
7 NA 2 ]
Returns:
Unique_X = [ 1, 2, 3, 4, 7]
Thanks,
Todd
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