MATLAB: Transforming two date vectors

dates

Dear all,
I have
A={
'2/11/2008'
  '30/11/08'
  '28/12/08'
  '25/01/09'
  '22/02/09'
  '22/03/09'
  '19/04/09'
  '17/05/09'
  '14/06/09'
  '12/7/2009'
  '9/8/2009'
  '6/9/2009'
  '4/10/2009'
  '1/11/2009'
  '29/11/09'
  '27/12/09'
  '31/01/10'
  '28/02/10'
  '28/03/10'
  '25/04/10'
  '23/05/10'
  '20/06/10'
  '18/07/10'
  '15/08/10'
  '12/9/2010'}
and
B={
 '1/4/2009'
  '2/1/2009'
  '3/1/2009'
  '4/5/2009'
  '5/3/2009'
  '5/31/2009'
  '7/5/2009'
  '8/2/2009'
  '8/30/2009'
  '10/4/2009'
  '11/1/2009'
  '11/29/2009'
  '1/3/2010'
  '1/31/2010'
  '2/28/2010'
  '4/4/2010'
  '5/2/2010'
  '5/30/2010'
  '7/4/2010'
  '8/1/2010'
  '8/29/2010'
  '10/3/2010'
  '10/31/2010'
  '11/28/2010'
  '1/2/2011'
  '1/30/2011'
  '2/27/2011'
  '4/3/2011'
  '5/1/2011'
  '5/29/2011'
  '7/3/2011'
  '7/31/2011'
  '8/28/2011'
  '10/2/2011'
  '10/30/2011'
  '11/27/2011'
  '1/4/2009'
  '2/1/2009'}
Sometimes I have either vector A or vector B. I want to find a unified code that will convert these vectors to the format dd/mm/yy irrespective of whether I have A or B
thanks

Best Answer

a = regexp(DateInput,'(^\d*)(?=/)','match');
if any(str2double(cat(1,a{:}))>12)
    dfmt = 'dd/mm/yyyy';
else
    dfmt = 'mm/dd/yyyy';
end
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