How to set risetime thresholds in stepinfo function

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Elvis Lee
Elvis Lee 2023-4-6
评论： Star Strider 2023-4-6
Hi there,
i am measuing the performance of a control system and using the function 'stepinfo' to do so. On the documentation, it says that the default threshold for the risetime is 10%-90%, but it can be changed. I have tried many different ways and cant find out actually how to change these values. i am trying to set them from 0%-100% which the documentation says is possible.
Any ideas?

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Star Strider
Star Strider 2023-4-6
Ran in:
Try something like this —
sys = tf([1 5 5],[1 1.65 5 6.5 2]);
step(sys)
si = stepinfo(sys, 'RiseTimeThreshold',[0 1])
si = struct with fields:
RiseTime: 4.8143 TransientTime: 27.9762 SettlingTime: 27.9762 SettlingMin: 2.0689 SettlingMax: 2.6873 Overshoot: 7.4915 Undershoot: 0 Peak: 2.6873 PeakTime: 8.0530
This is illustrated in the documentation, however not well documented in the Input Argmuments section.
.

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