Select a certain number of mine Vector Members in MATLAB

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lech king
lech king 2020-10-6
评论： lech king 2020-10-6
Hi
I have a 40 x 1 vector. I want to find the location of 20 smaller components of this vector. The position of these members is considered.
Thanks for your guidance

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KSSV
KSSV 2020-10-6
Let v be your vector. You can arrange them from small to big order i.e in ascending order and then pick first twenty elements.
[val,idx] = sort(v) ;
val(1:20) % values
idx(1:20) % indices
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KSSV
KSSV 2020-10-6
You already have the indices in your hand as idx which corresponds to original vector. This is not a problem. The positions are according to vector v.

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