Finding the x intercept

9 次查看（过去 30 天）
Darpan Verma
Darpan Verma 2019-3-10
评论： Darpan Verma 2019-3-10
I have this curve fit plot. as shown in the figure below. How can I find at y = 0? as marked in the figure. This is a point where y = 0. I need a generalized code which can keep on finding value at y = 0 and keeps storing in a table.Screen Shot 2019-03-10 at 3.47.32 PM.png

请先登录，再回答此问题。

采纳的回答

Walter Roberson
Walter Roberson 2019-3-10
fitresult(1) is evaluating the model at x = 1, not extracting the first coefficient.
coeffs = coeffvalues(fitresult);
m = coeffs(1);
b = coeffs(2);
Yintercept = b;
Xintercept = -b/m;
  1 个评论
Darpan Verma
Darpan Verma 2019-3-10
Thanks a lot Walter. That worked :) I really appreciate it.

请先登录，再进行评论。

更多回答（0 个）

类别

在 Help Center 和 File Exchange 中查找有关 Exploration and Visualization 的更多信息

标签

产品


版本

R2018b

Community Treasure Hunt

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

Start Hunting!

Translated by