Linear regression : estimate the parameters

15 vues (au cours des 30 derniers jours)
amine&&
amine&& le 18 Fév 2017
Commenté : Chad Greene le 18 Fév 2017
Hello! How can I estimate the parameters (beta1 and beata2) of the following model : y=beta1+beta2*x+epsilon Thanks.

Réponse acceptée

Chad Greene
Chad Greene le 18 Fév 2017
Use polyfit.
p = polyfit(x,y,1);
beta1 = p(2);
beta2 = p(1);
  2 commentaires
amine&&
amine&& le 18 Fév 2017
Modifié(e) : amine&& le 18 Fév 2017
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 le 18 Fév 2017
Check out the optional S output in polyfit, which has S.R and S.normr.

Connectez-vous pour commenter.

Plus de réponses (0)

Catégories

En savoir plus sur Linear and Nonlinear Regression dans Help Center et File Exchange

Community Treasure Hunt

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

Start Hunting!

Translated by