MATLAB: Changing the string “JF 2009” to two seperate strings “J 2009″ ” F2009″

cell array

Dear all I have the following cell matrix
A={
1  'SLO'    ' '             
 1  'SLO'    ' '            
 1  'SLO'    'JF 2009'     
 1  'SLO'    'MA 2009'     
 1  'SLO'    'MJ 2009'     
 1  'SLO'    'JA 2009'     
 1  'SLO'    'SO 2009'     
 1  'SLO'    'ND 2009'    
 1  'SLO'    'JF 2010'    
 1  'SLO'    'MA 2010'     
 1  'SLO'    'MJ 2010'     
 1  'SLO'    'JA 2010'     
 1  'SLO'    'SO 2010'     
 1  'SLO'    'ND 2010'     
 1  'SLO'    'JF 2011'     
 1  'SLO'    'MA 2011'     
 1  'SLO'    'MJ 2011'     
 1  'SLO'    'JA 2011'     
 2  'SLO'    ' '             
 2  'SLO'    ' '            
 2  'SLO'    'JF 2009'     
 2  'SLO'    'MA 2009'     
 2  'SLO'    'MJ 2009'     
 2  'SLO'    'JA 2009'     
 2  'SLO'    'SO 2009'     
 2  'SLO'    'ND 2009'     
 2  'SLO'    'JF 2010'     
 2  'SLO'    'MA 2010'     
 2  'SLO'    'MJ 2010'     
 2  'SLO'    'JA 2010'     
 2  'SLO'    'SO 2010'    
 2  'SLO'    'ND 2010'     
 2  'SLO'    'JF 2011'     
 2  'SLO'    'MA 2011'     
 2  'SLO'    'MJ 2011'    
 2  'SLO'    'JA 2011'     
  }
As you can see I have bimontly data. I want to modify the last column so as to have months like
 Amodified={
  1  'SLO'    ' '             
   1  'SLO'    ' '            
   1  'SLO'    'J  2009'     
   1  'SLO'    'F 2009'     
   1  'SLO'    'M 2009'     
   1  'SLO'    'A 2009'     
   1  'SLO'    'M 2009'     
   1  'SLO'    'J 2009'    
   1  'SLO'    'J 2010' }
and so forth
Is there any "clever code to do that?
NOte that the fist column represents the individual. In my real matrix I have 30000 individuals.
thanks in advance

Best Answer

% try this
n=size(A,1);
c1=num2cell([1:n]')
a=[c1 A]
b=sortrows(a,4)
B=b(:,4)
d=max(find(cellfun(@(x) length(x)>2,B)==0))
C=b(d+1:end,:)
n1=size(C,1)
ind1=1:2:2*n1-1;ind2=2:2:2*n1,C1=C;C2=C;
C1(:,4)=cellfun(@(x) strtrim(regexprep(x,x(1),'')),C(:,4),'UniformOutput',false)
C2(:,4)=cellfun(@(x) strtrim(regexprep(x,x(2),'')),C(:,4),'UniformOutput',false)
D=cell(n1*2,4); D(ind1,:)=C2; D(ind2,:)=C1;
E=sortrows([b(1:d,:) ; D],1);
Result=E(:,2:4)
Related Question