Hi all,
    I have matrix A of 67420 by 2 and another matrix B of 59199 by 2. I would like to find the number of rows of matrix B that I can find in matrix A (rows that are common to both matrices with or without sorting).

I have tried the "intersection" and "is.element" functions in R but it only working for the vectors and not matrix
i.e,    intersection(A,B) and is.element(A,B).

Any suggestions please.
 
 Oluwole
	[[alternative HTML version deleted]]

