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Performing matrix subtraction for huge data
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I have a matrix say A = [2,5,7]' and another matrix B = [2,7,9]', now i want to subtract B from A in such a way like each element of B will get subtracted from all elements of A, like c = A - B then c should be like (Expected outcome) = [0 3 5, -5 -2 0, -7 -4 -2]
Its like each element of B will get deducted from all elements of A and result will be stored in row wise in new matrix row wise.I dont want to use any loops but only vectorization.So i have used bsxfun but it is good for small matrix but if the dimension of A is 230600 * 1 and B is 1400000 * 1 then bsxfun show out of memory error so how to solve this issue without using loops??
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Stephen23
el 11 de Ag. de 2017
duplicate:
https://www.mathworks.com/matlabcentral/answers/352425-performing-matrix-subtraction-for-huge-data
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