Finding the elements in two matrices with different sizes?
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Hello eveeryone, i have 2 matrices lets say A=[1,2,3,4,5,6,7,8] B = [1,11,12,3,3,5] what i want is to have such a result C=[1,3,3,5] what i want is compare two matrices ok that we can do that with intersect(), but in intersect function i only have [1,3,5], that is not what i want. what i want is even if it is repeated in matrix B compare with A and then have a matrix of C. The A and B sizes changing for each simulation. Can you help me please?
采纳的回答
Roger Stafford
2015-2-24
You can also use 'ismember':
C = B(ismember(B,A));
更多回答（2 个）
Image Analyst
2015-2-24
Try setdiff():
A=[1,2,3,4,5,6,7,8]
B = [1,11,12,3,3,5]
[~, ia]=setdiff(B, A)
C = B; % Initialize to B
C(ia) = [] % Remove different elements.
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