Writing Data to text file gives error,unknown parameter
2 views (last 30 days)
Show older comments
hi All
I am trying to write some parameter to a py file as follows
Let's say I have the m-file 1 that contains the parameters like p=2,,,, q=3*p ,,,,,, and tf=1
m-file 2 is a function like : mvar(m) , I always assign m=1,
file 1 runs m-file 2 that contains these lines:
fid = fopen('myparams.py', 'w');
fprintf(fid,'p1 = %d\n',p1);
fprintf(fid,'q = %0.12f\n',q); fprintf(fid,'tf= %0.12f\n',tf);
to write them on the third file myparams , it writes the first 2 but for the last one, tf , it gives error , while it is introduced in the same way also I dont know the difference of %d\n with %12f\n
the error is
Function is not defined for 'tf' inputs
thank you very much
0 Comments
Accepted Answer
Florian
on 14 Oct 2014
Hi,
%d is used when you want to write an integer (1,2,3,...)
%f and all derivative (%12f,...) are used to write float numbers (specify the precision, add spaces,..)
see the help of fprintf.
and I just try the code bellow, it works.
p = 2;
q = 3*p;
tf = 1 ;
fid = fopen('myparams.py', 'wt');
fprintf(fid,'p1 = %d\n',p);
fprintf(fid,'q = %d\n',q);
fprintf(fid,'tf= %d\n',tf);
fclose(fid)
The error message you get tells that ft is not defined. you should check if your variable is really created.
13 Comments
See Also
Categories
Find more on Audio Processing Algorithm Design in Help Center and File Exchange
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!