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Error using unique command

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Pat
Pat 2012-11-24
I have two values
A = [1000 16000 100000 30000 2000]
B = [150 100 4000 5000 2000];
I used code below to get the Sorted value of B according to A:
[ii jj k] = unique(A);
B = unique(B);
P = B(k);
C = [100 4000 2000 5000 150];
If my values of A are from -400 to 400 and and values of B are from -100 to 100 I get the error :
Index exceeds Dimension
Please provide assistance.

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采纳的回答

Azzi Abdelmalek
Azzi Abdelmalek 2012-11-24
编辑：Azzi Abdelmalek 2012-11-24
Edited
A=[1000 16000 100000 30000 2000]
B=[150 100 4000 5000 2000];
[~,idx]=sort(A)
[~,idx1]=sort(idx)
C=B(idx1)
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Azzi Abdelmalek
Azzi Abdelmalek 2012-11-24
编辑：Azzi Abdelmalek 2012-11-24
or maby it's this
A=[1000 16000 100000 30000 2000]
B=[150 100 4000 5000 2000];
[~,idx]=sort(A)
[~,idx1]=sort(idx)
C=B(idx1)
Azzi Abdelmalek
Azzi Abdelmalek 2012-11-24
Pat, look at my edited answer

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更多回答（2 个）

Salil Goel
Salil Goel 2012-11-24
Are you making sure that the size of A and B is same when values in A are from -400 to 400 and B from -100 to 100? If not, then obviously you would get this error.
Matt Fig
Matt Fig 2012-11-24
编辑：Matt Fig 2012-11-24
% Sort B the same way A is sorted.
% We only need two calls to SORT.
[~,J] = sort(A);
BSA = sort(B);
J(J) = 1:length(A);
BSA = BSA(J) % This is B, sorted the same way A originally was.
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Azzi Abdelmalek
Azzi Abdelmalek 2012-11-29
What is the difference with the previous example?
Pat
Pat 2012-11-29
No difference as u said i have posted an example..another problem am facing Azzi is that if i use
Ew1 = dec2bin(mod(2^16+Ew,2^16)),my all values gets converted to 1111111111111111
y i get all value as one,Ew constsist of values from -32768 to 32767

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