Python Argmin function in MATLAB ( Finding an indexing in AxBxC array in specific colomn)

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Emre Can Ertekin 2020-9-17

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评论： Aditya Patil 2020-9-28

I have an matrix as dimensions 11x360x1360. I have to find the minimum indexes in each (11) column. In python i can do this operation with np.argmin(abs(x),axis = 0)). How can i do that in MATLAB? I have to search minimum index in 1x360x1360,2x360x1360 and my output should be 360x1360 and values in output should be 1,2,3,4,5,6,7,8,9,10,11('11' values).

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Aditya Patil 2020-9-22

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You can pass the linear option of the min function when you want to find the index of the minimum over multiple dimensions. Then use the ind2sub function to get subscript indices from the linear one's.

matrix = rand([11,360,1360]);
[value, index] = min(matrix, [], [2, 3], 'linear');
[I1, I2, I3] = ind2sub(size(matrix), index);

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Emre Can Ertekin 2020-9-25

this is not work for me, A(1,:,:) is 1x360x1360 array i need 360x1360 and output of A(1, : , :) is 1 2 3 4 5 6 7 8 9 10 11; i need one number. like 1 or 7. I try to made it in for loop thank you anyway.

Aditya Patil 2020-9-28