Adding Value in the array with proper indexing

Hi, here i have an array with random values, i have sort them and divide them in maximum and minimum values, after sorting the array the index of values is changes, if i want to add the minvalues in the orignal unsorted array with proper indexing. how should i do it?
ME=4;
E=rand(1,ME)
ES=sort(E,'descend')
Ls=length(ES);
Hl=(Ls/2);
maxval=ES(1:Hl);
minval=ES(Hl+1:end);

5 commentaires

madhan ravi
madhan ravi le 27 Mar 2019
Modifié(e) : madhan ravi le 27 Mar 2019
Show an example of your desired output. Also have no idea why you deleted the previous question without responding to the comments.
i just want to give the clear idea what i want to ask ,thats why deleted the previous one
Output
E =
0.0305 0.7441 0.5000 0.4799
ES =
0.7441 0.5000 0.4799 0.0305
>> maxval
maxval =
0.7441 0.5000
>> minval
minval =
0.4799 0.0305
here the minval from the unsorted array are 1st and 3rd, if i again want to add these values in the previous array how shall i add them ?
Rik
Rik le 27 Mar 2019
That is just the output of your current code, not the output of want as the end result. What vector do you want to have?
I want to add
E(4)+minval(1) and
E(1)+minval(2)

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 Réponse acceptée

Andrei Bobrov
Andrei Bobrov le 28 Mar 2019

0 votes

ME=4;
E=rand(1,ME);
[ES,ii]=sort(E,'descend');
Ls=length(ES);
Hl=(Ls/2);
maxval=ES(1:Hl);
mxii = ii(1:Hl);
minval=ES(Hl+1:end);
mnii = ii(Hl+1:end);
Enew = E;
Enew(mnii) = Enew(mnii) + minval

Plus de réponses (1)

Andrei Bobrov
Andrei Bobrov le 27 Mar 2019

0 votes

ME=4;
E=rand(1,ME);
[ES,ii]=sort(E,'descend');
Ls=length(ES);
Hl=(Ls/2);
maxval=ES(1:Hl);
mxii = ii(1:Hl);
minval=ES(Hl+1:end);
mnii = ii(Hl+1:end);
Enow = sortrows([maxval(:),mxii(:);minval(:),mnii(:)],2);
Enow = Enow(:,1);

1 commentaire

Sir, i want to add minval in the E array with same index values
e.g. if in the minval i have index 3,1 so i want to add them in the E array in their corresponding positions

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