About "Matlab Fctn" block

I included a for loop in the ML Fctn block.

function [xtest] x=(k)
for i=1:10
x=i
if (i>5)
x=k
else
x=i
end
end

I connected the output (x) to a "Time Scope" block. After the model runs for 20 sec, the Time Scope plot only the final value of x (x=k) instead of different values of x (1,2,3,4,5,5,5,..). How can I store or plot out all values of x? disp(x) will display values of x in Matlab window but I want to either store or plot x out (not just the final value).

Thanks.

Thanks.

I connected the output (x)

Answer 1

[Azzi Abdelmalek]

That's because the output of your Matlab Function block is the result of your for loop. The output is not the result of each iteration. You can use persistent declaration without a for loop, because Simulink will run your function automatically each step.

function x=fcn(k)
persistent i
if isempty(i)
 i=0
end
i=i+1
x=i
if i>5
 x=k
else
 x=i
end

[William]

Because I want to increase the value of x (similar to using a ramp function which is not availabe in Matlab) so I used for loop. How can I get around this?