Is it possible to form a matrix with strings and manipulate them?
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Harrison Kurunathan
le 20 Jan 2017
Réponse apportée : Jorge Mario Guerra González
le 20 Jan 2017
Can I make a matrix like [(a,b), (c,d), (d,f) ; (t,a), (a,b), (g, a); (a,f),(c,d),(a,g) ] and then reorder the rows based on the maximum number of same strings (say a ) in the matrix? the answer will be [(t,a), (a,b), (g, a); (a,f),(c,d),(a,g) ; (a,b), (c,d), (d,f)]
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James Tursa
le 20 Jan 2017
Please give an explicit example so we know for sure the data types you are working with and how they are stored in variables.
John Chilleri
le 20 Jan 2017
One method to store a matrix of strings is with cell. Otherwise, I second James, an explicit example would be useful!
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Jorge Mario Guerra González
le 20 Jan 2017
Try this, it's using cell arrays. However I believe that in the newest versions of matlab cell arrys that include Sting work in a different way.
m={['a','b'], ['c','d'], ['d','f'] ; ['t','a'], ['a','b'], ['g', 'a']; ['a','f'],['c','d'],['a','g']}
counter=zeros(size(m,1),1);
for i=1:size(m,1)
for j=1:size(m,2)
counter(i)=counter(i)+length(strfind(m{i,j},'a'));
end
end
[~,ind]=sort(counter,'descend');
result=m(ind,:)
hope it helps
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Walter Roberson
le 20 Jan 2017
Matrices of strings require R2016b or later. Before that you need cell arrays of character vectors.
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