who can help me write matlab codes for curve fitting?

1 次查看（过去 30 天）
Ming
Ming 2014-8-12
编辑： Salaheddin Hosseinzadeh 2014-8-13
I want to fit these 25 curves.who can write codes for me? my curve fitting function is f(x)=a+b/(1+(d*x)^c)

请先登录，再回答此问题。

回答（2 个）

Salaheddin Hosseinzadeh
Hi Ming,
Try to read your xlsx data using this command "xlsread"
type 'doc xlsread' in matlab command line to see its details.
Then type 'cftool' so that matlab curve fitting toolbar opens you can chose your fit, and when you're satisfied you can go to 'File > Generate Code' and save it as an .m file.
Then take a look inside the created m file and i'm sure you'll learn how to do it without curve fitting interface ;)
Good Luck!
  4 个评论
显示 2更早的评论
Ming
Ming 2014-8-13
I just do not know how to write a loop for this program.
Salaheddin Hosseinzadeh
Salaheddin Hosseinzadeh 2014-8-13
编辑：Salaheddin Hosseinzadeh 2014-8-13
Could you successfully read the xls file and create 25 set of data?

请先登录，再进行评论。

Pratik Bajaria
Pratik Bajaria 2014-8-13
Hello, Please go though the 'fit' and 'polyfit' function help in matlab. These might address your query. http://www.mathworks.in/help/curvefit/fit.html and http://www.mathworks.in/help/matlab/ref/polyfit.html and the corresponding related functions too.
Please let me know in case of any further queries.
Regards, Pratik

类别

在 Help Center 和 File Exchange 中查找有关 Statistics and Machine Learning Toolbox 的更多信息

标签

产品

Community Treasure Hunt

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

Start Hunting!

Translated by