What do I have to do to sort strings properly in Listbox?

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Haksun Lee 2012-6-18

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评论： Stephen23 2024-2-8

采纳的回答： Geoff

Hi,

While I try to figure this out, I have problems again..

To sort strings in listbox,

e.g.,I have strings below! 'p1' 'p2' 'p10' 'p12' 'p21'

To sort those strings, I tried to use sort(),

and then, result was like this..

'p1' 'p10' 'p12' 'p2' 'p21'

%%%% :-( %%%%

But, I want to sort A as, 'p1' 'p2' 'p10' 'p12' 'p21'

What do I have to do for this?

I'm looking forward to your answer!

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Geoff 2012-6-25

Oh... probably... Meh, well, I'll stop being a grump and hack it out quickly again.

Haksun Lee 2012-6-25

There was some misunderstanding..

Have a nice day everyone..

But I have to figure this out T.T

- Newbie programmer, H.S Lee

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采纳的回答

Geoff 2012-6-25

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在 MATLAB Online 中打开

Don't ask the same question just because nobody answered it yesterday. If you are impatient, write a comment on it to bump it back up. People occasionally check through old questions to see what hasn't been answered. That's also a reason to accept answers - so people who do look back on old questions know not to check those that are already accepted.

Now... code, with no explanation this time.

A = {'p1', 'p10', 'p12', 'p2', 'p21'};
N = cellfun( @str2double, regexp(A, '\d+', 'match') )
[~,I] = sort(N);
B = A(I);

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Soroush Asarzadeh 2016-2-20

@Walter thanks, it works now! @Stephan thank u for your answer

Stephen23 2024-2-8

在 MATLAB Online 中打开

Note that Walter Roberson's approach from 25 Jun 2012 can be made to work with the addition of the 'once' option (and this is indeed more efficient than calling STR2DOUBLE inside CELLFUN):

A = {'p10=34', 'p4=10', 'p2=11', 'p3=90', 'p21=55'};
N = str2double(regexp(A, '\d+', 'match', 'once'))
N = 1x5
    10     4     2     3    21

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