MATLAB: Minimum value of a matrix with the main diagonal elements equals to zero

matrix manipulationminimum

Hello,

I have a 10×10 matrix where the main diagonal is zeros.

How the minimum value of the elements is calculated, excluding the zeros?

Thank you.

Best,

Pavlos

Best Answer

out = min(A(A~=0))

Related Solutions

MATLAB: How to get maximum value of the matrix

M = max(A,[],'all')

M = min(A,[],'all')

MATLAB: Main diagonal operations problem

Using Roger Stafford's FEX submission randfixedsum (must be downloaded first):

https://www.mathworks.com/matlabcentral/fileexchange/9700-random-vectors-with-fixed-sum

>> N = 4; % matrix size
>> M = nan(N,N); % preallocate
>> V = 0.3+(1-0.3)*rand(1,1) % diagonal value
V =
      0.47505
>> M(~eye(N)) = randfixedsum(N-1,N,1-V,0,1); % other values
>> M = M.'; % transpose
>> M(1:N+1:end) = V % assign diagonal value
M =
      0.47505      0.40657    0.0087969      0.10958
      0.12917      0.47505      0.21287       0.1829
      0.35794      0.15519      0.47505     0.011825
      0.41335     0.032696     0.078907      0.47505

Checking the sum of each row:

>> sum(M,2)
ans =
     1
     1
     1
     1

and diagonal:

>> diag(M)
ans =
      0.47505
      0.47505
      0.47505
      0.47505

Best Answer

Related Solutions

MATLAB: How to get maximum value of the matrix

MATLAB: Main diagonal operations problem

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