discrete-time rectangular functions

I need help defining a discrete-time rectangular function

rect[n] = {1, 0≤𝑛≤𝑁

0, 𝑒𝑙𝑠𝑒 }

This is what I have:

rect_n1 = ones(1,T);

for n=0:(N_1)

rect_n1(n)=1;

end

Answer 1

[Voss]

You should initialize rect_n1 to zeros if you're going to set the places where it's 1, and indexing in MATLAB starts with 1, so:

T = 10;
N_1 = 5;
rect_n1 = zeros(1,T);
for n=1:(N_1) 
    rect_n1(n)=1;
end
plot(rect_n1)

or, without the loop:

T = 10;
N_1 = 5;
rect_n1 = zeros(1,T);
rect_n1(1:N_1) = 1;
plot(rect_n1)