How to find first non repeated (unique) character in a string?

I have already tried to find a Matlab function for this but doesnt seem to be one apart from 'unique' which only eliminates duplicates. Any ideas for code on how to do this?

For example, an input of 'hello' would return h or an input of 'radar' would return d.

The unique characters in 'hello' are h,e and o with h being the first in line

The unique character in 'radar' is only d and so this would also be the first

Any help would be appreciated

[madhan ravi]

please illustrate with an example

[Sam Accura]

Example added to question - thank you

Answer 1

[madhan ravi]

u=unique(s,'stable'); % where s is your input
Z=arrayfun(@(x)nnz(s==u(x)),1:numel(u));
Result=u(find(Z==1,1,'first'))

[Sam Accura]

Thank you very much - very helpful.

Answer 2

[Andrei Bobrov]

z = 'hello';

[a,~,c] = unique(z,'stable');
out = a(find(accumarray(c,1) == 1,1));