find non zero elements in array
15 views (last 30 days)
Show older comments
im trying to implement find non zero elements without using "find' toolbox in simulink. im using matlab function block as shown on the screenshot
function y = non_zero(u)
x=find(u);
y=x
![](https://www.mathworks.com/matlabcentral/answers/uploaded_files/679513/image.png)
![](https://www.mathworks.com/matlabcentral/answers/uploaded_files/679518/image.png)
0 Comments
Answers (1)
Soniya Jain
on 10 Jul 2021
As mentioned in the error, that y is non-tunable, so have you tried to select the 'Variable Size' checkbox by specifying the upper bounds in the Size box?
Also, find function will return the index of the non zero elements in a vector, so if you want values at the index, you can code in the following way:
function y = non_zero(u)
x = find(u); % will return index of non-zero elements
y = y(x);
end
3 Comments
Soniya Jain
on 11 Jul 2021
So have you tried to select the 'Variable Size' checkbox by specifying the upper bounds in the Size box?
See Also
Categories
Find more on HDL Coder 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!