Wrting binary data to text file

Hey everybody, I have some binary information, like a=[11110000 00001111 00000000 11111111], I want to write them to a text file. i tried with fprintf and fwrite but i couldn't! anybody has such a experience? Thanks a lot in advance. best.

[Walter Roberson]

That first entry of "a": is it stored as decimal eleven million, one hundred and ten thousand? And size(a) is 1 x 4 ? Or is it stored as [1 1 1 1 0 0 0 0; 0 0 0 0 1 1 1 1; etc] and size(a) is 4 x 8? Or is it stored as {'11110000' '0000111' etc} ?

[mahdi safarzadeh]

I would say that is it stored as a 1*4 array of 8 bits binary data I mean instead of [0 4 8 16] I would to show my data like [00000000 00000100 00001000 00010000]

[mahdi safarzadeh]

I tried all the above forms, but i didn't work! I want to save my binary inputs. and these inputs are 8 bits data. actually they're complex, I mean the first 4 bits, real part and the last 4 bits img part. and after saving these inputs in a text file, I am going to separate the rael and imaginary part for furthure calculation. so i need these information to be saved as binary, as array of 8 bits.

Answer 1

[Huang Andong]

a=[11110000; 00001111; 00000000; 11111111]; dlmwrite('C:\Users\dell\Desktop\a.txt',a);

[mahdi safarzadeh]

I tried this, But it didn't work! I want to save my binary inputs. and these inputs are e.g 8 bits data

Answer 2

[Walter Roberson]

t = cellstr(dec2bin(a, 8));
fid = fopen('a.txt', 'wt');
fprintf(fid, '%s\n', t{:});
fclose(fid);

[mahdi safarzadeh]

Thanks a lot walter, I did like this and it worked:

    In =  ['11111111' , '00000000' , '10101010'];
    filnam = '../user/inputs.stim';
    fid = fopen(filnam,'w');
    for i=1:size(In,1)    
        fprintf(fid,'%s\n', In(i,:));
    end;          
    fclose(fid);

[Walter Roberson]

That is not going to work.

>> ['11111111' , '00000000' , '10101010']

ans =

111111110000000010101010

Remember, [] is concatenation for strings. {} is for string arrays.

[mahdi safarzadeh]

yo are right, it should be like: [ '11111111' ; '00000000' ...