Extracting text from a cell

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joseph Frank
joseph Frank 2013-7-24
A='00003H102'
How can I write a code to extract the first 6 letters and numbers. i.e. I want B='00003H';
  1 个评论
Jan
Jan 2013-7-24
编辑：Jan 2013-7-24
@joseph: From the comments later on we see, that your data are not A='00003H102', but that you talk of a cell string. Please care for posting the real input data, because posting wrong answers for wrong inputs wastes your and our time. Thanks.
What is the wanted result, when the string has less than 6 characters?

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回答（3 个）

Azzi Abdelmalek
Azzi Abdelmalek 2013-7-24
编辑：Azzi Abdelmalek 2013-7-24
A='00003H102'
A(1:6)
If you have a cell array
A={'00003H102','00003H103','00003H104'}
B=cellfun(@(x) x(1:6),A,'un',0)
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Azzi Abdelmalek
Azzi Abdelmalek 2013-7-24
A={'00003H102','00003H103','00003H104','00003'}
idx=cellfun(@(x) min(numel(x),6),A,'un',0)
B=cellfun(@(x,y) x(1:y),A,idx,'un',0)

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Azzi Abdelmalek
Azzi Abdelmalek 2013-7-24
A={'00003H102','00003H103','00003H104','00003' []}
B=cellfun(@(x) x(1:min(numel(x),6)),A,'un',0)
Andrei Bobrov
Andrei Bobrov 2013-7-24
编辑：Andrei Bobrov 2013-7-24
B = regexp(A,'^.{0,6}','match')
B = cat(1,B{:});

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