Variable size changes on every iteration

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Aftab Ahmed Khan 2014-6-5

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评论： José-Luis 2014-6-5

采纳的回答： José-Luis

Hi,

What is an efficient way of doing the following task.

departure_time(1) = 250;

file_arrival(1) = 0.0;

for i = 2:30

departure_time(i) = arrival_time(i)+transmission_time(i)+departure_time(i-1);

end

This code is working fine for me but the matlab script editor show the message that "the variable departure_time changes size on every loop iteration. I am sure that there will be another way of achieving the same task, right?

Thank you so much.

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采纳的回答

José-Luis 2014-6-5

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https://ww2.mathworks.cn/matlabcentral/answers/132560-variable-size-changes-on-every-iteration#answer_139559

编辑：José-Luis 2014-6-5

在 MATLAB Online 中打开

Pre-allocate. Before departure(1) = 250, place:

departure_time = NaN .* ones(30,1);

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Aftab Ahmed Khan 2014-6-5

Thanks for the explanation, Accepted.

Cheers.

José-Luis 2014-6-5

My pleasure, thank you.

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