changing the date form in a cell matrix

2 views (last 30 days)
salva
salva on 26 Jul 2012
Dear all,
i have the following cell matrix
A = {
[1] 'SLO' ' ' '' ''
[1] 'SLO' ' ' '' ''
[1] 'SLO' ' ' '' ''
[1] 'SLO' 'M 2009' 'SLO' 'MA'
[1] 'SLO' 'A 2009' 'SLO' 'MA'
[1] 'SLO' 'M 2009' 'SLO' 'MA'
[1] 'SLO' 'J 2009' 'SLO' 'MA'
[1] 'SLO' 'J 2009' 'SLO' 'MA'
[1] 'SLO' 'A 2009' 'SLO' 'MA'
[1] 'SLO' 'S 2009' 'SLO' 'MA'
[1] 'SLO' 'O 2009' 'SLO' 'MA'
[1] 'SLO' 'N 2009' 'SLO' 'MA'
[1] 'SLO' 'D 2009' 'SLO' 'MA'
[1] 'SLO' 'J 2010' 'SLO' 'MA'
[1] 'SLO' 'F 2010' 'SLO' 'MA'
[1] 'SLO' 'M 2010' 'SLO' 'MA'
[1] 'SLO' 'A 2010' 'SLO' 'MA'
[1] 'SLO' 'M 2010' 'SLO' 'MA'
[1] 'SLO' 'J 2010' 'SLO' 'MA'
[1] 'SLO' 'J 2010' 'SLO' 'MA'
[1] 'SLO' 'A 2010' 'SLO' 'MA'
[1] 'SLO' 'S 2010' 'SLO' 'MA'
[1] 'SLO' 'O 2010' 'SLO' 'MA'
[1] 'SLO' 'N 2010' 'SLO' 'MA'
[1] 'SLO' 'D 2010' 'SLO' 'MA'
[1] 'SLO' 'J 2011' 'SLO' 'MA'
[1] 'SLO' 'F 2011' 'SLO' 'MA'
[1] 'SLO' 'M 2011' 'SLO' 'MA'
[1] 'SLO' 'A 2011' 'SLO' 'MA'
[1] 'SLO' 'M 2011' 'SLO' 'MA'
[1] 'SLO' 'J 2011' 'SLO' 'MA'
[1] 'SLO' 'J 2011' 'SLO' 'MA'
[1] 'SLO' 'A 2011' 'SLO' 'MA'
[2] 'KKK' ' ' ' ' ''
[2] 'SLO' ' ' ' ' ''
[2] 'SLO' ' ' '' ''
[2] 'SLO' 'M 2009' 'SLO' 'MA'
[2] 'SLO' 'A 2009' 'SLO' 'MA'
[2] 'SLO' 'M 2009' 'SLO' 'MA'
[2] 'SLO' 'J 2009' 'SLO' 'MA'
[2] 'SLO' 'J 2009' 'SLO' 'MA'
[2] 'SLO' 'A 2009' 'SLO' 'MA'
[2] 'SLO' 'S 2009' 'SLO' 'MA'
[2] 'SLO' 'O 2009' 'SLO' 'MA'
[2] 'SLO' 'N 2009' 'SLO' 'MA'
[2] 'SLO' 'D 2009' 'SLO' 'MA'
[2] 'SLO' 'J 2010' 'SLO' 'MA'
[2] 'SLO' 'F 2010' 'SLO' 'MA'
[2] 'SLO' 'M 2010' 'SLO' 'MA'
[2] 'SLO' 'A 2010' 'SLO' 'MA'
[2] 'SLO' 'M 2010' 'SLO' 'MA'
[2] 'SLO' 'J 2010' 'SLO' 'MA'
[2] 'SLO' 'J 2010' 'SLO' 'MA'
[2] 'SLO' 'A 2010' 'SLO' 'MA'
[2] 'SLO' 'S 2010' 'SLO' 'MA'
[2] 'SLO' 'O 2010' 'SLO' 'MA'
[2] 'SLO' 'N 2010' 'SLO' 'MA'
[2] 'SLO' 'D 2010' 'SLO' 'MA'
[2] 'SLO' 'J 2011' 'SLO' 'MA'
[2] 'SLO' 'F 2011' 'SLO' 'MA'
[2] 'SLO' 'M 2011' 'SLO' 'MA'
[2] 'SLO' 'A 2011' 'SLO' 'MA'
[2] 'SLO' 'M 2011' 'SLO' 'MA'
[2] 'SLO' 'J 2011' 'SLO' 'MA'
[2] 'SLO' 'J 2011' 'SLO' 'MA'
[2] 'SLO' 'A 2011' 'SLO' 'MA'
[3] 'MMM' ' ' '' ''
[3] 'SLO' ' ' '' ''
[3] 'SLO' ' ' '' ''
[3] 'SLO' 'M 2009' 'SLO' 'MA'
[3] 'SLO' 'A 2009' 'SLO' 'MA'
[3] 'SLO' 'M 2009' 'SLO' 'MA'
[3] 'SLO' 'J 2009' 'SLO' 'MA'
[3] 'SLO' 'J 2009' 'SLO' 'MA'
[3] 'SLO' 'A 2009' 'SLO' 'MA'
[3] 'SLO' 'S 2009' 'SLO' 'MA'
[3] 'SLO' 'O 2009' 'SLO' 'MA'
[3] 'SLO' 'N 2009' 'SLO' 'MA'
[3] 'SLO' 'D 2009' 'SLO' 'MA'
[3] 'SLO' 'J 2010' 'SLO' 'MA'
[3] 'SLO' 'F 2010' 'SLO' 'MA'
[3] 'RRR' 'M 2010' 'SLO' 'MA'
[3] 'RRR' 'A 2010' 'SLO' 'MA'
[3] 'SLO' 'M 2010' 'SLO' 'MA'
[3] 'SLO' 'J 2010' 'SLO' 'MA'
[3] 'SLO' 'J 2010' 'SLO' 'MA'
[3] 'SLO' 'A 2010' 'SLO' 'MA'
[3] 'SLO' 'S 2010' 'SLO' 'MA'
[3] 'SLO' 'O 2010' 'SLO' 'MA'
[3] 'SLO' 'N 2010' 'SLO' 'MA'
[3] 'SLO' 'D 2010' 'SLO' 'MA'
[3] 'SLO' 'J 2011' 'SLO' 'MA'
[3] 'SLO' 'F 2011' 'SLO' 'MA'
[3] 'SLO' 'M 2011' 'SLO' 'MA'
[3] 'SLO' 'A 2011' 'SLO' 'MA'
[3] 'SLO' 'M 2011' 'SLO' 'MA'
[3] 'SLO' 'J 2011' 'SLO' 'MA'
[3] 'SLO' 'J 2011' 'SLO' 'll'
[3] 'SLO' 'A 2011' 'SLO' 'll'
}
My goal is to obtain this one
A = {
[1] 'SLO' ' ' '' ''
[1] 'SLO' ' ' '' ''
[1] 'SLO' ' ' '' ''
[1] 'SLO' '3/2009' 'SLO' 'MA'
[1] 'SLO' '4/2009' 'SLO' 'MA'
[1] 'SLO' '5/2009' 'SLO' 'MA'
[1] 'SLO' '6/2009' 'SLO' 'MA'
[1] 'SLO' '7/2009' 'SLO' 'MA'
[1] 'SLO' '8/2009' 'SLO' 'MA'
[1] 'SLO' '9/2009' 'SLO' 'MA'
[1] 'SLO' '10/2009' 'SLO' 'MA'
[1] 'SLO' '11/2009' 'SLO' 'MA'
[1] 'SLO' '12/2009' 'SLO' 'MA'
[1] 'SLO' '1/20010' 'SLO' 'MA'
[1] 'SLO' '2/2010' 'SLO' 'MA'
[1] 'SLO' '3/2010' 'SLO' 'MA'
[1] 'SLO' '4/2010' 'SLO' 'MA'
[1] 'SLO' '5/2010' 'SLO' 'MA'
[1] 'SLO' '6/2010' 'SLO' 'MA'
[1] 'SLO' '7/2010' 'SLO' 'MA'
[1] 'SLO' '8/2010' 'SLO' 'MA'
[1] 'SLO' '9/2010' 'SLO' 'MA'
[1] 'SLO' '10/2010' 'SLO' 'MA'
[1] 'SLO' '11/2010' 'SLO' 'MA'
[1] 'SLO' '12/2010' 'SLO' 'MA'
[1] 'SLO' '1/2011' 'SLO' 'MA'
[1] 'SLO' '2/2011' 'SLO' 'MA'
[1] 'SLO' '3/2011' 'SLO' 'MA'
[1] 'SLO' '4/2011' 'SLO' 'MA'
[1] 'SLO' '5/2011' 'SLO' 'MA'
[1] 'SLO' '6/2011' 'SLO' 'MA'
[1] 'SLO' '7/2011' 'SLO' 'MA'
[1] 'SLO' '8/2011' 'SLO' 'MA'
}
and so forth for the rest of the individuals
where as you can see in the third column I have replace for example the month 'M 2009' with '3/2009'.
In my case i have 30000 individuals
Is there any code for achieving this?
Thanks
  3 Comments
Show 1 older comment
salva
salva on 26 Jul 2012
Edited: salva on 26 Jul 2012
perhaps by going one step back: that is this is my very original matrix
A={
1 'SLO' ' ' '' ''
1 'SLO' ' ' '' ''
1 'SLO' ' ' '' ''
1 'SLO' 'MA 2009' 'SLO' 'MA'
1 'SLO' 'MJ 2009' 'SLO' 'MA'
1 'SLO' 'JA 2009' 'SLO' 'MA'
1 'SLO' 'SO 2009' 'SLO' 'MA'
1 'SLO' 'ND 2009' 'SLO' 'MA'
1 'SLO' 'JF 2010' 'SLO' 'MA'
1 'SLO' 'MA 2010' 'SLO' 'MA'
1 'SLO' 'MJ 2010' 'SLO' 'MA'
1 'SLO' 'JA 2010' 'SLO' 'MA'
1 'SLO' 'SO 2010' 'SLO' 'MA'
1 'SLO' 'ND 2010' 'SLO' 'MA'
1 'SLO' 'JF 2011' 'SLO' 'MA'
1 'SLO' 'MA 2011' 'SLO' 'MA'
1 'SLO' 'MJ 2011' 'SLO' 'MA'
1 'SLO' 'JA 2011' 'SLO' 'MA'
2 'KKK' ' ' ' ' ''
2 'SLO' ' ' ' ' ''
2 'SLO' ' ' '' ''
2 'SLO' 'MA 2009' 'SLO' 'MA'
2 'SLO' 'MJ 2009' 'SLO' 'MA'
2 'SLO' 'JA 2009' 'SLO' 'MA'
2 'SLO' 'SO 2009' 'SLO' 'MA'
2 'SLO' 'ND 2009' 'SLO' 'MA'
2 'SLO' 'JF 2010' 'SLO' 'MA'
2 'SLO' 'MA 2010' 'SLO' 'MA'
2 'SLO' 'MJ 2010' 'SLO' 'MA'
2 'SLO' 'JA 2010' 'SLO' 'MA'
2 'SLO' 'SO 2010' 'SLO' 'MA'
2 'SLO' 'ND 2010' 'SLO' 'MA'
2 'SLO' 'JF 2011' 'SLO' 'MA'
2 'SLO' 'MA 2011' 'SLO' 'MA'
2 'SLO' 'MJ 2011' 'SLO' 'MA'
2 'SLO' 'JA 2011' 'SLO' 'MA'
3 'MMM' ' ' '' ''
3 'SLO' ' ' '' ''
3 'SLO' ' ' '' ''
3 'SLO' 'MA 2009' 'SLO' 'MA'
3 'SLO' 'MJ 2009' 'SLO' 'MA'
3 'SLO' 'JA 2009' 'SLO' 'MA'
3 'SLO' 'SO 2009' 'SLO' 'MA'
3 'SLO' 'ND 2009' 'SLO' 'MA'
3 'SLO' 'JF 2010' 'SLO' 'MA'
3 'RRR' 'MA 2010' 'SLO' 'MA'
3 'SLO' 'MJ 2010' 'SLO' 'MA'
3 'SLO' 'JA 2010' 'SLO' 'MA'
3 'SLO' 'SO 2010' 'SLO' 'MA'
3 'SLO' 'ND 2010' 'SLO' 'MA'
3 'SLO' 'JF 2011' 'SLO' 'MA'
3 'SLO' 'MA 2011' 'SLO' 'MA'
3 'SLO' 'MJ 2011' 'SLO' 'MA'
3 'SLO' 'JA 2011' 'SLO' 'll'
}
see also my previous question
Thomas
Thomas on 26 Jul 2012
is MA March April? MJ -May June? and so on... do you have any data that says 'Jan 2009' ...?

Sign in to comment.

Sign in to answer this question.

Accepted Answer

Thomas
Thomas on 26 Jul 2012
Using the first A cell MAtrix shown in the question:
for ii=1:length(A)
A(ii,3)=strrep(A(ii,3),'S','SEP');
A(ii,3)=strrep(A(ii,3),'O','OCT');
A(ii,3)=strrep(A(ii,3),'N','NOV');
A(ii,3)=strrep(A(ii,3),'D','DEC');
A(ii,3)=strrep(A(ii,3),'F','FEB');
if strcmp(A(ii,3),A(1,3))
ii=ii+1;
else
if (cell2mat((strfind(A(ii,3),'J')))==1)
if (cell2mat(strfind(A(ii-1,3),'M')))==1
A(ii,3)=strrep(A(ii,3),'J','JUN');
elseif (cell2mat(strfind(A(ii-1,3),'J')))==1
A(ii,3)=strrep(A(ii,3),'J','JUL');
else
A(ii,3)=strrep(A(ii,3),'J','JAN');
end
end
if (cell2mat((strfind(A(ii,3),'M')))==1)
if (cell2mat(strfind(A(ii-1,3),'F')))==1
A(ii,3)=strrep(A(ii,3),'M','MAR');
else
A(ii,3)=strrep(A(ii,3),'M','MAY');
end
end
if (cell2mat((strfind(A(ii,3),'A')))==1)
if (cell2mat(strfind(A(ii-1,3),'J')))==1
A(ii,3)=strrep(A(ii,3),'A','AUG');
else
A(ii,3)=strrep(A(ii,3),'A','APR');
end
end
end
end
A(:,3) % output data
% convert to datenum
for ii=1:length(A)
if strcmp(A(ii,3),A(1,3))
ii=ii+1;
else
date_vec(ii)=datenum(A(ii,3),'mmm yyyy');
end
end

More Answers (1)

Davide Ferraro
Davide Ferraro on 26 Jul 2012
Edited: Davide Ferraro on 26 Jul 2012
The date has an ambiguous format cause "M 2009" can be march or may so a classic approac with DATENUM may not be appropriate. What I see is that you also have discontinuities.
A possible approach is to use a loop and at each step you check what letter you had the step before. I.e. if you find a M you check the previous line and if this an F you assume that M is March else it's May. A possible idea:
if A{i,3}(1) == 'M'
if A{i-1}(1) == 'F'
A{1,3} = ['3/' A{1,3}(2:end)];
else
A{1,3} = ['5/' A{1,3}(2:end)];
end
end
Surely you need to take care of all possible options and create a more complex IF-ELSE structure.
  2 Comments
salva
salva on 26 Jul 2012
It seems to me too complicated.
salva
salva on 26 Jul 2012
Any other suggestion?
thanks

Sign in to comment.

Categories

Find more on Multirate Signal Processing in Help Center and File Exchange

Tags

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!