plotting a piece-wise(multivalued_fu​nction) in matlab

This is short code to plot a piecewise function in matlab.. you can get the idea of creating the intervals for different time-steps.

clc
clear all
n = -5:0.5:5
xn =(1+n/3).*(-3<=n & n<=-1)+(0<=n&n<=3)+ 0.*(n)
stem(n,xn)
axis([-10 10 0 2])
xlabel('n)
ylabel('x(n)')
title('(1+n/3).*(-3<=n & n<=-1)+(0<=n&n<=3)+ 0.*(n)')