Linear regression : estimate the parameters

2017 2 18
1 个回答
回答已采纳
更新时间：2017 2 18
5 次查看（30 天）

0 个投票

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

请先登录，再回答此问题。

 采纳的回答

Chad Greene
Chad Greene 2017-2-18

0 个投票

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

2 个评论
显示 无 隐藏 无

amine&&
amine&& 2017-2-18
编辑：amine&& 2017-2-18
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
Chad Greene 2017-2-18
Check out the optional S output in polyfit, which has S.R and S.normr.

请先登录，再进行评论。

更多回答（0 个）

类别

在 帮助中心 和 File Exchange 中查找有关 Linear and Nonlinear Regression 的更多信息

标签

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by