how to rectify stem function error?

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Shyam Sunder
Shyam Sunder 2020-8-15
回答： Walter Roberson 2020-8-15
n={-5,-4,-3,-2,-1,0,1,2,3,4,5};
u_n={0,0,0,0,0,1,1,1,1,1,1};
stem(n,u_n);
xlabel('time sample');
ylabel('amplitude');
Error: using stem (line 40)
Input arguments must be numeric, datetime, duration or categorical.
how to rectify this error?

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采纳的回答

Walter Roberson
Walter Roberson 2020-8-15
Your {} should be []
You are not going to be able to stem() a cell array.

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