can we apply ode45 on .mat file

4 次查看（过去 30 天）
Muhammad
Muhammad 2023-12-21
回答： Steven Lord 2023-12-21
I have a data of 100x5 columns. can i apply ode45 solver on this data against my specfic initial conditions?
or what is the best way to apply ODE solver on the data?
  3 个评论
显示 1更早的评论
Muhammad
Muhammad 2023-12-21
This data will only be used as a right of ODE like in SINDy algorithm and my associated system is discretized ODE
Torsten
Torsten 2023-12-21
Ran in:
We cannot make sense of your problem description.
If you want to integrate the 5 columns, you can use "cumtrapz":
x = 0:0.1:2*pi;
y = sin(x);
Y = cumtrapz(x,y);
hold on
plot(x,Y)
plot(x,-cos(x)+1)
hold off
grid on

请先登录，再进行评论。

请先登录，再回答此问题。

采纳的回答

Steven Lord
Steven Lord 2023-12-21
Okay, so based on the keywords in the comment a quick Google search found this page. So is this your x matrix or your Θ matrix, using the notation from that page?
If it's your x matrix, are you looking for help in constructing the Θ matrix?
Or do you have both matrices and you're looking for something to perform the LASSO step? The lasso function in Statistics and Machine Learning Toolbox may be of interest to you.

更多回答（0 个）

类别

在 Help Center 和 File Exchange 中查找有关 Ordinary Differential Equations 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