% Smart Antennas - exponential density curve


x=0:.01:10;
sig=2;
p=exp(-x/sig)/sig;
figure;plot(x,p,'k')
xlabel('x')
ylabel('p(x)')
axis([0 10 0 .5])
set(gca,'xtick',[-10 20])
set(gca,'ytick',[-10 20])