An array is unavailable after running matlab code

Question

When I run the below code, values of vf are printed in each iteration step. But after the code completely finished, when I type plot(vf) I get the error:

Unrecognized function or variable 'vf'.

Here is my code:

global Y
global vf
vf=[];
c=0;
for i=0:100:500
    c=c+1;
%%this is a function by which I read the data for Y
    readdata(i);    
    vf(cnt) = mean(mean(Y .* Y))
end

Could somebody please help me with solving this problem?

Rotem · Accepted Answer · 2019-11-27 21:54:08Z

2

The question is a little awkward with all the global declarations.

I suppose the solution is declaring global vf before using plot(vf):

global vf
plot(vf)

See global documentation.

In case is't not working, it's hard telling why.

answered Nov 27, 2019 at 21:54

Rotem

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2 Comments

Marco Over a year ago

Sorry, I'm not plotting vf. I want to keep its value

Marco Over a year ago

Wow! Thank you very much. I think it is working now!

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