fprintf In column wise

Hi, I have got one problem with respect to printf command while arranging the matrix in column wise for ".dat" file.Here are the details:

I have got the variables as

     X = 0    0.1500    0.3000
         0    0.1500    0.3000
         0    0.1500    0.3000

and

     Y = 0         0         0
         0.1500    0.1500    0.1500
         0.3000    0.3000    0.3000

and I need the arrangement in the "dat" file as

        X    Y
        0    0
       0.15  0
       0.30  0
        0    0.15 
       0.15  0.15
       0.30  0.15
        0    0.30
       0.15  0.30
       0.30  0.30

I tried this command :

 fprintf(fid,'%f\n%f\n%f  \n',[Y(:)',X(:)']);  %%Say i have fopen then inserted into it with fileID

But the result I am getting is in a single column as Total X terms first and Total Y terms second,

0
0.15
0.30
0
0.15
0.30
0
0.15
0.30
0
0
0
0.15
0.15
0.15
0.30
0.30
0.30

Please help me out to make it correct in the write format. I tried using \t in between, But in "dat" file, it creates disturbance to upper commands if I use that.

Thanks and Regards,

Sunag R A.

[EDITED, Jan, code formatted]

[Jan]

I've formatted your text to make it readable. Please read http://www.mathworks.com/matlabcentral/answers/13205-tutorial-how-to-format-your-question-with-markup#answer_18099 .

Answer 1

[Jan]

   fprintf(fid, '%g %g\n', [Y(:), X(:)].')

or:

fprintf(fid, '%g %g\n', [Y(:).'; X(:).'])

Perhaps you want '%f' instead of '%g'. Your format string did not match your wanted result and the values must be concatenated differnetly. But you have been very near already. With a little bit more trying you would have found it soon.

[Sunag R A]

Hi,

Thank you very much for the reply. But this "%g" is giving me only a precision integer and not making two different columns even if the variable codes are same. I'm still in a confusion state of how to execute it.

Thanks and Regards,

Sunag R A.

[Jan]

No, the code I've posted creates 2 columns and the number of columns is not related to the format. This only depends on the number of outputs before the '\n' appears in the format string. Simply copy&paste my code and run it. The '%f' or '%g' changes only the number of decimals for integer values.

Please do not insert blanks infront of a text here. This triggers a formatting.

Answer 2

[David Barry]

Assuming that x and y are always vectors of the same length then you could do something like this to merge them into a single variable and then call fprintf using this new variable.

reshape([X;Y], 1, numel([X;Y]))

[Sunag R A]

hi,

Thank you very much for the answer. I tried this code and executed it. But it still looks the same,i.e. I am getting the variables in a single column. I need in two columns of X values and Y values separately. This code helped me learn a new code. Thanks for it. Please let me if u have understood my question or not.

Thanks and Regards, Sunag R A.

[Jan]

@Sunag R A: did you see, that your code in the question is badly formatted? It is impossible to guess, what you want to achieve: Please read the "?" link to learn how to format text and code in this forum.

[David Barry]

What Jan Said. My answer was based on your original post which made it look like vectors.