Euclidean distance between two vectors of complex numbers

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Geetika
Geetika 2014-1-8
评论： dhruv jain 2017-5-5
I have two vectors of complex numbers and want to compute Euclidean distance between them. whether I should use d = norm(A - B) or d = norm(abs(A) - abs(B))

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Matt J
Matt J 2014-1-8
编辑：Matt J 2014-1-8
Suppose you have
>> A=1-i; B=1+i;
Which result do you consider correct,
>> d = norm(A - B) ,
d =
2
or
>> d = norm(abs(A) - abs(B))
d =
0
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Matt J
Matt J 2014-1-8
编辑：Matt J 2014-1-8
What about when A=1, B=-1. Do you again want to consider their distance to be zero?
In any case, this is not a general question that anyone but you can know the answer to. This is driven by the needs of your specific application and so only you know what is right for that.
dhruv jain
dhruv jain 2017-5-5
Considering you are working on feature vectors which give complex numbers then you should consider euclidean distance

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