How to sort non-ascii characters?

damayi — Thu, 16 Oct 2008 06:29:18 -0400

Dear MATLAB users
I want to sort a string that contains non-ascii charaters, such as
Chinese Words.
I found that MATLAB sort these character according with its double
value. However, I want to sort them using another rule, for example
'PinYin' which represents its pronouncation.
Here is an example,
A =3D '=CE=D2=B0=AE=B1=B1=BE=A9=B5=D8=B0=B2=C3=C5'
Using sort(A), we can get:
=CE=D2=B0=AE=B1=B1=BE=A9=B5=D8=B0=B2=C3=C5

this sequence is sorted according to character's double value. Now I
want to sort it according to its pronouncation, how can I do that?

Best Regards
mayi
2008-10-16

Re: How to sort non-ascii characters?

Jos — Thu, 16 Oct 2008 07:40:37 -0400

damayi <damayi@gmail.com> wrote in message <69507506-5d62-4493-b355-9225ed0c8654@v39g2000pro.googlegroups.com>...
> Dear MATLAB users
> I want to sort a string that contains non-ascii charaters, such as
> Chinese Words.
> I found that MATLAB sort these character according with its double
> value. However, I want to sort them using another rule, for example
> 'PinYin' which represents its pronouncation.
> Here is an example,
> A =3D '=CE=D2=B0=AE=B1=B1=BE=A9=B5=D8=B0=B2=C3=C5'
> Using sort(A), we can get:
> =CE=D2=B0=AE=B1=B1=BE=A9=B5=D8=B0=B2=C3=C5
>
> this sequence is sorted according to character's double value. Now I
> want to sort it according to its pronouncation, how can I do that?
>
> Best Regards
> mayi
> 2008-10-16

I am not familiar with chinese and your message screwed up on my newsreader but here's an approach that might work for you. Assume I have an alphabet with six possible characters.

% You need to define the order of the alphabet
order = {'ff','cc','dd','eee','a','bb'} ;

% My sequence of characters,
S = {'a','bb','a','cc','bb'}

% The required order after sorting
Srequired = {'cc','a','a','bb','bb'} ;

% The engine
[tf,loc] = ismember(S,order) ;
[unused,si] = sort(loc) ;
Ssorted = S(si)

% did we arrive at the correct answer
isequal(Ssorted,Srequired) % yes

hth
Jos

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How to sort non-ascii characters?

Re: How to sort non-ascii characters?