How to find the gradient and intercept if you know values of x and y?

24 次查看（过去 30 天）
Bob Johnson
Bob Johnson 2015-3-4
回答： Star Strider 2015-3-4
I have 2 columns of data, one being the x values and one being the y values. Now I've been tasked with finding the intercept and gradient using these values but I have absolutely no idea how to get started on this. Would anyone mind helping me out?

请先登录，再回答此问题。

回答（2 个）

John D'Errico
John D'Errico 2015-3-4
help polyfit
Star Strider
Star Strider 2015-3-4
Another option:
x = rand(10,1);
y = rand(10,1);
B = [ones(size(x)) x]\y;
intercept = B(1);
slope = B(2);
I used ‘slope’ rather than ‘gradient’ because gradient is also the name of a built-in MATLAB function.

类别

在 Help Center 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