saving variables contained within a function
16 visualizzazioni (ultimi 30 giorni)
Mostra commenti meno recenti
I need to save variables that are computed inside a function (called from a header) without providing them as output parameters. I can't use 'save' because the function is called inside a loop and it overwrites (the variables computed change over time). Is the only way to accomplish this through 'fprintf'?
0 Commenti
Risposta accettata
Rick Rosson
il 28 Giu 2011
It is probably not the only way to accomplish this task, but it will certainly work.
You can use fprintf to print to a text file instead of to the command window. Please check the documentation:
doc fopen
doc fclose
doc fprintf
The code would be something like:
filename = 'data.txt';
txt = fopen(filename,'w')
...
...
for ...
...
fprintf(txt, '...\n' , ...);
...
end
...
...
fclose(txt);
...
...
HTH.
Rick
0 Commenti
Più risposte (2)
Rick Rosson
il 28 Giu 2011
Another approach would be to declare a persistent variable that will accumulate the results each time you call the function, and then perhaps write the results out to a MAT file the last time you call the function.
Please check the documentation:
doc persistent
The function template would be:
function y = foo(x)
persistent results
if isempty(results)
results = zeros(...);
end
...
...
end
HTH.
0 Commenti
Vedere anche
Categorie
Scopri di più su String Parsing in Help Center e File Exchange
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!