%@Yipei Wang, contact: yipeiw@cmu.edu

clear all; clc;
X = 5*rand(100,1);  
y = rand*X + rand(100,1);    % generate some synthetic data
f1 = figure;                 % create a blank figure
p1 = plot(X,y,'.');          % plot X vs y

axis([-1,6,-1,5]);
xlabel('x'); ylabel('y');title('this is the title');