Find minimum and maximum from same matrix
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I have a matrix of 1181*101 that is a Power of an electric vehicle. It has positive, negative and zeros. Now I need to choose minimum of positive from total matrix and maximum of negative from the same total matrix. How can I do it?
Example
i=1181, j=101
% Power =[1181*101] containing both positive, negative and zeros.
% Now,
if Power(i, j) >= 0
[P, index] = min(Power, [], 2);
else
%(i.e. Power(i,j)<0)
[P, index] = max(Power, [], 2);
But every time, either it is taking only minimum or only maximum at a time. I tried changing negative terms to zero for minimum and positive terms to zero for maximum, but it still did not work. Please help me.
I can email to you if you require more details like code and variables.
3 commentaires
Image Analyst
le 14 Juil 2021
You can attach the variables right here. Why not make it easy for people to help you, not hard? Why make us go through an extra step to get your matrix when you could have just attached it in a .mat file right here when you originally posted?
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Jan
le 14 Juil 2021
I guess, that zeros values should be ignored. Then:
tmpPower = Power;
tmpPower(tmpPower <= 0) = Inf;
[minPositive, index1] = min(tmpPower, [], 2);
tmpPower = Power;
tmpPower(tmpPower > 0) = -Inf;
[maxNegative, index2] = max(tmpPower, [], 2);
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Plus de réponses (1)
David Hill
le 14 Juil 2021
m=yourMatrix;
m(m<=0)=inf;
Min=min(m,[],'all');
m=yourMatrix;
m(m>=0)=0;
Max=-max(abs(m),[],'all');
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