How to tell if an object is an Uncertain state-space (USS) model?

3 次查看（过去 30 天）
John
John 2023-4-25
评论： John 2023-4-25
I have a function that is overloaded, and takes both standard state space, and uncertain (uss) state space as inputs.
Since c2d() doesn't work for uss, i need to do a different process depending on which type I pass in.
How can I tell programatically if an object is an Uncertain state-space (USS) model, vs a normal state space model?
I tried isempty(), isfield(), etc, but none of these commands are accepted on both uss and normal state space objects.

请先登录，再回答此问题。

采纳的回答

Paul
Paul 2023-4-25
Ran in:
Hi @John
Looks like isuncertain can be used to query if the input is uncertain.
Also, there is a function isStateSpace that can handle the other part, though it might be undocumented.
p = ureal('p',1);
usys = tf(p,[1 p]);
usys
Uncertain continuous-time state-space model with 1 outputs, 1 inputs, 1 states. The model uncertainty consists of the following blocks: p: Uncertain real, nominal = 1, variability = [-1,1], 1 occurrences Type "usys.NominalValue" to see the nominal value and "usys.Uncertainty" to interact with the uncertain elements.
isuncertain(usys)
ans = logical
1
isStateSpace(usys)
ans = logical
1
  1 个评论
John
John 2023-4-25
Ah, great. Thanks @Paul, that solves it. I searched the documentation but didn't find this. Still not sure how else to find this type of thing in the future :)

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 Uncertain Models 的更多信息

标签

产品


版本

R2022b

Community Treasure Hunt

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

Start Hunting!

Translated by