How to remove duplicate elements from array based on another array ?

Hello everbody,

i am looking for Help .

I want to in the array leave one value and eleminate all the duplicates of the array correspond to another array

and store it in new array

as small example

% this the array that i am using as refernce to remove elemnts from b    
a=[1 1 2 3 2 4 4 3];
% the array that i want to remove elemnts from
b=[1 1 0.5 1 0.5 2 2 1];

% the answer should be 
b=[1 0.5 1 2];

Thanks for helping

Answer 1

[madhan ravi]

 [~, ii]= unique(a, 'stable');
 b = b(ii)

[khaled elbatawy]

Thank you for helping , It works !