how to store some of the values of a simulation while running?

I want to store my values while simulation running under a condition to use it before the simulation time end. I only need values in my vector and no 'nan' because i need to do a calculation on it.

function u_out = fcn(statusFlag,u_in)

u_out=zeros(100000,1);

persistent n

if isempty(n)

n = 0;

end

n=n+1;

persistent u_data

if isempty(u_data)

u_data = 0;

end

if statusFlag == 4

u_data=u_in;

u_out(n+1)=u_data;

elseif statusFlag~=4 && statusFlag~=5

u_data=nan;

end

end

Answer 1

[KALYAN ACHARJYA]

You can do it as follows

u_out=zeros(100000,1);
j=1;
for i=1:length
condition check, if yes
u_data(j)=....
j=j+1
else 
    %no
end 
end

Now all simulation values are save in u_data as array, you can call it when it is required.

[K G]

thank you for your answer, i tried this but i get all values as a 0

function u_out=fcn(u_in,statusFlag)

u_out=zeros(100000,1);

j=1;

for i=1:length(u_out)

if statusFlag==4

u_out(j)=u_in;

j=j+1;

else

%no

end

end

end

[KALYAN ACHARJYA]

Where is your main script, where you are calling this function?

You are trying to save u_data values, right?

[K G]

as the simulation is running

Answer 2

[K G]

I m tring to save the u_in values in u_out , the function is in simulink model