Linear regression : estimate the parameters

Hello! How can I estimate the parameters (beta1 and beata2) of the following model : y=beta1+beta2*x+epsilon Thanks.

Answer 1

[Chad Greene]

Use polyfit.

p = polyfit(x,y,1); 
beta1 = p(2); 
beta2 = p(1);

[amine&&]

Thank Chad, but I want to know also information about the law following the resudiel (epsilon), the value of the coefficient R ^ 2 and other information.And how I can have confidence interval estimates for these parameters

[Chad Greene]

Check out the optional S output in polyfit, which has S.R and S.normr.