for loop, write to text file, append, fprintf, pass input parameters

Im looking to pass input parameters (Youngs Modulus) to a text file fprintf(fileID,'<E>%f<E/>\n',E_out);

The text file is running FEBio in terminal where im wanting it to run each of the individual values for E and present me with 3 different set of results.

Am i right in doing something like the following:

E_out = [100000 200000 30000]
for i = 1:length(E)
  fprintf(fileID,'<E>%f<E/>\n',E_out(i));
end 

And how would i get this to to then pass to my main file containg the FEBio textfile code.

[Guillaume]

Am i right in doing something like the following:

If you fix the for bound to be length(E_out) instead of length(E), yes. Personally, I'd use numel rather than length. Note that you don't even need a loop,

E_out = [100000 200000 30000];
fprintf(fileID,'<E>%f<E/>\n',E_out);

would produce the same result. Whether %f is the right format is up to you. %g in this case would work better.

And how would i get this to to then pass to my main file containg the FEBio textfile code.

This part of your question is really not clear.

[Lewis Doherty]

Ok tahn ks for the info. As for the second question...

So if i had say a parameters.m file with the above code (varying Young modulus and permeability values) and then a main.m file with the FEBio text file code. I take it the parameters.m file with the changing E and k values would have to call upon the main.m file to changhe the value of E in the FEBio code? If that makes sense

[Lewis Doherty]

Sadly this still wouldnt work for me

[Mohammad Sami]

It's not clear to me what FEBio text file code. Is it something outside Matlab ?

[Lewis Doherty]

Yes. A finite element solver.