Effacer les filtres
Effacer les filtres

How to get the max value index and the next max value index and next until the end (the smallest) of the array

3 vues (au cours des 30 derniers jours)
For example if A Vector
A=[5.2,6.3,1.2,10,2,4.3];
I want to get the index of the max value (in my example is 10 so the index is 4) then find the next max value which is 6.3 then the index is 2,,, the final output i need it to be as follows:
I=[3,2,6,1,5,4]
where I the returned indices corresponding to A

Réponse acceptée

Ibrahim Fares
Ibrahim Fares le 11 Jan 2019
Modifié(e) : Ibrahim Fares le 11 Jan 2019
I solved this problem, so I will share it with you:
function [ mapped] = mapping( x )
for i = 1:length(x)
[~,j]=max(x);
mapped(j)=i;
x(j)=-inf;
end
end

Plus de réponses (1)

madhan ravi
madhan ravi le 6 Jan 2019
  3 commentaires
Ibrahim Fares
Ibrahim Fares le 6 Jan 2019
Thanks for your interest, but A randomly changes in an iteration, is always do this step?
and why this happens?
madhan ravi
madhan ravi le 6 Jan 2019
Modifié(e) : madhan ravi le 6 Jan 2019
"[D,I] = sort(A) also returns a sort index I which specifies how the
elements of A were rearranged to obtain the sorted output D:"
>> [D,I]=sort(A)
D =
1.2000 2.0000 4.3000 5.2000 6.3000 10.0000
I =
3 5 6 1 2 4 % indices of orginal values
>>

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