MATLAB: Select the indexes corresponding to the n lowest values in a vector.

MATLABminsortvector

Hello!

I have a vector that I want to return the index position of n lowest values from. I can easily select the lowest with min() and I cal also get the lowest by sorting the array and select the n first values. However, I want the index position of the n lowest values in the unsorted vector.

Best Answer

[Values,Indices]=mink(vector,n)

Related Solutions

MATLAB: Extract N maximum values from a vector, with also the relative index position

sort your vector in descending order. The first 5 values are the top 5 maximum (they may be identical) and the first 5 elements of the second return value of sort is their index:

v = rand(1, 100);
[sortedv, indices] = sort(v, 'descend');
max5 = sortedv(1:5)
idx5 = indices(1:5)

MATLAB: Finding the 10 lowest values

Let's say you have a matrix of 10x10:

   x=rand (10,10);

Sort it by the columns in ascending order:

   y=sort (x,1, 'ascend')

*Now take the 5 first rows - these are the lowest values in every column:

   z=y(1:5, :)

Best Answer

Related Solutions

MATLAB: Extract N maximum values from a vector, with also the relative index position

MATLAB: Finding the 10 lowest values

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