Solution for saving array data in text file line by line in Matlab

[poster]

[r1 c1]= size(cluster_head);
r1
fid=fopen('na.txt','w');
for f=1:r1
f
for m = 1:c1

              %value of cluster in chrosome



               a= cluster_head(1,m);







               temp = find(neighbors1(cluster_head(1,m),:));

               disp('neighbour')

               temp



               [r c]= size(temp);









                   k(1,1)=cluster_head(1,m);



                for n=2:c+1



                            if(temp(1,n-1)~=k(1,1))



                      k(f,n)= temp(1,n-1);

Need k(f,n) to save in txt file line by line
save solution.txt k(f,n) -ASCII

solution.txt only store the last solution value in 1st row overwrite all others or previous solutions

                            end





                end



                 fprintf('%d Iterations completed\n',m);        

end

end

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