MATLAB: Convert a matrix with some zero to non zero txt file

matrix

for example I have this matrix: [ 1 2 3 ; 1 0 0 ; 0 0 0; 4 5 6] I want to save it to a txt file: 1 2 3 1 4 5 6 (also delete zero rows completely.)

Best Answer

a=[ 1 2 3 ; 1 0 0 ; 0 0 0; 4 5 6] I
for k=1:size(a,1)
  b=a(k,:)
  b=b(b~=0);
  dlmwrite('file1.txt',b,'-append')
end

Related Solutions

MATLAB: How to insert rows and colums of zeroes in this matrix ??? a=[1 2 3;4 5 6]

Here is one quick way to interlace columns and rows of zeros:

>> a=[1 2 3;4 5 6];
>> b = zeros(2*size(a));
>> b(1:2:end,1:2:end) = a
b =
   1   0   2   0   3   0
   0   0   0   0   0   0
   4   0   5   0   6   0
   0   0   0   0   0   0

MATLAB: Adding zeros to an array

OutPut = B;
OutPut(3,4) = 0;

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