How Predint works?

9 次查看（过去 30 天）

显示更早的评论

Susmit Kumar Mishra 2020-6-16

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/549237-how-predint-works

评论： Adam Danz 2020-6-16

Data4.xlsx

I was working on a fit for that I had to generate the confidence bounds.

I used predint function for this purpose.

This is a theta VS time plot. I will be attaching the correspoding data (those in dots) for that.The function that I want to fit with the data is

for this plot Take x=1.

Now to obtain the upper and lower bounds I simply used predint ,but now I have to show how I got the bounds mathematically.

So I wanted to know how predint works and what method does it follows to generate curves for upper and lower bound for any confidence.

Thanks.

1 个评论
显示 -1更早的评论隐藏 -1更早的评论

Adam Danz 2020-6-16

This question is a bit outside of the scope of the forum since it really isn't about Matlab. If you look up "prediction interval" in most stats textbooks you'll see how prediction intervals are computed. You can also search the internet for "Difference between confidence interval and prediction interval". They are not the same.