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Similar to unique, how can i use for case insenisitive

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For example I have cell array a = { 'abc' , 'aBc' , 'xyz' , 'Xyz'}
now i need to remove the duplication.
As unique is the case sensitive, it returns the whole array.
how can i do it?
Thank you

Accepted Answer

Jan on 25 Jun 2015
Edited: Jan on 25 Jun 2015
a = { 'abc' , 'aBc' , 'xyz' , 'Xyz'};
[dummy, ia] = unique(lower(a));
result = a(ia);

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