If I have a matrix of xy coordinates A where A is something like
A= [1 2 3 4 3 0 10 1 3 11 5 6 . . . x y ]
and I want to remove all data entry points where x>5, and y>4. How might I do that effectively without previous knowledge of the entries (i.e. x and y = 10*rand(n,1) or something)?
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