Adding Value in the array with proper indexing

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Maheen Fazal
Maheen Fazal 2019-3-27
评论： Maheen Fazal 2019-3-29
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);
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Rik
Rik 2019-3-27
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?

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采纳的回答

Andrei Bobrov
Andrei Bobrov 2019-3-28
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

更多回答（1 个）

Andrei Bobrov
Andrei Bobrov 2019-3-27
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 个评论
Maheen Fazal
Maheen Fazal 2019-3-28
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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