fprinf format

hi, i have this problem, suppose i have

x=[1,2,3]
y=[4,5,6]
z=[7,8,9]
i had it save use "fid=fopen" and "fprintf" command to "results.str", how to make the results.str saved in this following format:

s
100
1
7 1 4
8 2 5
9 3 6

which "s" 100 and 1 is a constant value to begin with, followed by z in the first column, then x and y.

anyone can help?

Answer 1

[Paulo Silva]

x=[1,2,3]
y=[4,5,6]
z=[7,8,9]
FileName='results';
FID = fopen(FileName, 'w');
if FID < 0, error('Cannot open file'); end
data = [z', x', y'];
fprintf(FID, 's\n%g\n%g\n', 100,1);
fprintf(FID, '%g %g %g\n', data');
fclose(FID);

Adapted from Jan Simon code

[Win Thomas Halim]

thank you very much!

[Win Thomas Halim]

ive just try your code, turns out results.str become :

s 100 1 z x y.

is it possible to made 100 is just below s, 1 is below 100 and z x y are below 1?