my root locus plot wont show the datatip

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Zain Ahmed
Zain Ahmed 2020-8-25
回答： Ahmad 2024-1-8
i have a root locus plot here:
k = 1;
s = tf('s');
Gs = 1/(s^2+s);
Ks = k*(s+2)/(s+10);
sys = Gs*Ks/(1+Gs*Ks);
rlocus(sys);
But the problem is that, whenever i click on the line, the data won't display, just x and y coordinate. is there any fix to this?

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回答（2 个）

Kiran Felix Robert
Kiran Felix Robert 2020-8-28
Hi Zain,
I assume that you are using the MATLAB live editor for root locus plot. This is a known issue, it is reported to the developers and the concerned people are looking into it.
One known workaround is to:
1. Create the root locus plot with either 'rlocus' command or the 'rlocusplot' command from a MATLAB script file or the command line.
2. Then use data cursor to examine various points of the root locus plot.
Kiran Felix Robert
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显示 5更早的评论
Henry Asa
Henry Asa 2023-4-12
Any estimates/updates on when this will be fixed? I prefer using live scripts but this functionality is critical.
sihan zhang
sihan zhang 2023-5-5
编辑：sihan zhang 2023-5-5
still not working on the R2022b version

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Ahmad
Ahmad 2024-1-8
clear all;clf;
numerator = [1 4];
denominator = [1 8 7 0];
sys = tf(numerator, denominator);
rlocus(sys);
grid on;
title('Root-Locus L(s) = s+4/s^3+8s^2+7s')

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