MATLAB: Finding the position of the minimum element in the matrix

matrixminposition;

hello. i need to know the position of the minimum element of the matrix. For example 
M= [1 5 7; 2 4 5 ]
M=
1 5 7
2 4 5
the min is 1 and it's position is (1,1).
How can i find this?
Thanks

Best Answer

You really should use find() rather than min() since find() will find them all and min() only finds the first occurrence, which is important since the min could occur at multiple locations:
M = [1 5 7; 2 4 5; 4, 1, 5]
minValue = min(M(:));
% Find all (row, column) pairs where M = the min value.
[rows, columns] = find(M == minValue)
% Print them out:
for k = 1 : length(rows)
	fprintf('M equals the min value of %f at row = %d, column = %d.\n', ...
		minValue, rows(k), columns(k));
end
You'll see
M =
1 5 7
2 4 5
4 1 5
rows =
1
3
columns =
1
2
M equals the min value of 1.000000 at row = 1, column = 1.
M equals the min value of 1.000000 at row = 3, column = 2.
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