How to get the vector rankings as per values without common rankings

I have a problem of x=[1 3 4 2 3] ... I want its answer should be a=[1 3 5 2 4]and not in form of a=[1 3 4 2 3]...

These are not giving desired results [~,a]=sort(x) [a,b]=unique(x)

Answer 1

[Stephen23]

One easy way is to add a very small value to each element of the vector to make them all unique:

>> x = [1,3,4,2,3];
>> [~,~,c] = unique(x+eps*(1:numel(x)))
c =
   1   3   5   2   4

This will work assuming that you have fewer than 1/eps() elements, and that they are all integer.