How can I get the variable from inside of the for loop and use it /display it after for loop?
9 views (last 30 days)
Show older comments
Hi,
I created a for loop. Inside this for loop I calculated a variable. Unfortunately Matlab deletes the variable after the end of the for loop. How can I use the calculated variable outside of the for loop? Thanks!
Accepted Answer
Azzi Abdelmalek
on 26 Oct 2012
Edited: Azzi Abdelmalek
on 26 Oct 2012
That depends where your loop is, in script file or function file If it's in Function file, that have nothing to do with a loop , you declare your variable global, If it's in the script file, your variable can't be deleted. look at these examples
for k=1:10
x=sin(k)
end
the result is x=sin(10); the previous x where erased, if you want to save them
for k=1:10
x(k)=sin(k)
end
3 Comments
Arthur
on 26 Oct 2012
In a function it's better to return is as a variable. Easier and saver.
function x = myLoop()
for k=1:10
x(k)=sin(k)
end
More Answers (1)
Sachin Ganjare
on 26 Oct 2012
Declare that variable as global, so that matlab won't delete it.
4 Comments
José-Luis
on 26 Oct 2012
No it's not. It's a bad idea. Don't use globals. Have the function return the variable instead.
See Also
Categories
Find more on Loops and Conditional Statements 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!