Trouble pulling out numbers from a matrix into variables

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Steve
Steve 2014-5-1
评论： Star Strider 2014-5-1
So I need to scan a matrix for any "1" in the 6th column and then if that row has a 1 in the 6th column, I need to turn the 2nd column of the same row into an x variable, and the 4th column of the same row into a y variable, so I can plot it later.
From my understanding I need to use the intersect function? I am new to matlab and don't exactly know how to use it, or am I using the wrong function? If someone could show me how to do this I would really appreciate it. Thanks in advance

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Star Strider
Star Strider 2014-5-1
编辑：Star Strider 2014-5-1
I suppose you could use intersect, but a simpler approach will work, especially if your matrix isn’t huge:
M = randi(10, 15, 6) % Create data
x = M(M(:,6)==1,2) % Use logical indexing to get ‘x’ from column 2
y = M(M(:,6)==1,4) % and ‘y’ from column 4

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