minimum value array issue

I am using the following code line to get the minimum value of the matrix dn and the corresponding index of the minimum value

    [TransmiterNode,ind]=min(dn(:));

what I want to do is on the next run of this code line I do not want the old minimum value to be considered

[per isakson]

Please elaborate a bit. Possibly provide a small example.

[aya]

let's say dn=[2 5 8 7 0 1] for the first iteration the result of [TransmiterNode,ind]=min(dn(:)); would be TransmiterNode=0 -----> the value ind=5 ---------> the index

for the next iteration I want the next minimum value without considering the previous one

Answer 1

[Guillaume]

If you know that all the values in dn are different:

 %init
 ind = [];
 %for ...
   dntemp = dn;
   dntemp(ind) = [];
   [TransmiterNode,ind]=min(dntemp(:));
   %...
 %end

If not:

%init
%TransmiterNode = NaN; %or any other unused value in dn 
%for ...
 dntemp = dn;
 dntemp(find(TransmiterNode)) = [];
 [TransmiterNode,ind]=min(dntemp(:));
 %...
%end

[aya]

thank you it's worked just I want it to

Answer 2

[per isakson]

Another approach, try

    dn = [2 5 8 7 0 1];
    [ dn_sorted, ix ] = sort( dn, 'ascend' );

ix contains the "positions" of the values in the original vector, dn

[aya]

its a good idea but it does not effective for may program

Answer 3

[Rushikesh Tade]

If removing of values is allowed :

[TransmiterNode,ind]=min(dn(:));
dn(ind)=[];