Indexing in a vector

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MOHAMED ABDULAZIM 2020-8-16

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评论： MOHAMED ABDULAZIM 2020-8-16

I am trying to extract maximum value from a vector by max() function,however I need to know the index of this value in the vector in order to use this indexing in performing another operation by writing a script file.How to know the index of the element in the array?

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the cyclist 2020-8-16

You refer to your input as both a "vector" (one-dimensional) and an array (could be any dimension, but typically two).

Which is it?

MOHAMED ABDULAZIM 2020-8-16

a vector (one-dimensional)

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Answer 1

the cyclist 2020-8-16

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在 MATLAB Online 中打开

Please see my comment.

If your input is a vector (i.e. one-dimensional), then

[maxValue indexToMaxValue] = max(inputVector);

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Answer 2

Sara Boznik 2020-8-16

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在 MATLAB Online 中打开

r=triu(r);
r;
w=min(r(r>0));
b=max(r(:));
[m,n]=find(r==w);
fprintf(id,'Minimum %.4f.\n',w);
for i=1:length(m)
    fprintf(id,'Points %d in %d.\n',m(i),n(i));
end
[m,n]=find(r==b)
fprintf(id,'Maksimum %.4f.\n',b)
fprintf(id,'Points %d in %d.\n',m,n);