How to plot a Step function?

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Juan Rosado
Juan Rosado 2012-12-4
I am trying to generate a code to plot a step function that depends on t.
I am proceding the following way, but I get an error every time I run it,
clc,clear
t = [-100 : 100]';
tt = [t - 1];
for ii = 1 : 201
if t(ii) >= 0
t(ii) = 1;
else
t(ii) = 0;
end
end
for i = 1 : 201
if tt(i) >= 0
tt(i) = 1;
else
tt(i) = 0;
end
end
t1 = [-100 : 100];
y = t1 .* (t - tt);
plot(y,t1)
What I want is that for the input t, when t is >= 0 the value of the function is 1, and for everything else 0 and then plot the results.

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采纳的回答

Walter Roberson
Walter Roberson 2012-12-4
stairs(t, t >= 0)

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