Characteristics of a step response plot

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shamsa alb
shamsa alb 2021-5-8
回答： Star Strider 2021-5-8
hello!
I'm tryin to see the charactristice (Rise time, Percent Overshoot, Peak value and Peak time) of my plot response on the plot itself, I already have the properties from the command "stepinfo" but i want the charactristics to appear on the plot itself. i tried to right click but i don't have a "charactristics" thing showing there, is there any way to let the proporties show?

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回答（1 个）

Star Strider
Star Strider 2021-5-8
Ran in:
Try something like this (using a transfer function from the documentation) —
sys = tf([1 5 5],[1 1.65 5 6.5 2]);
stinf = stepinfo(sys);
stinft = struct2table(stinf);
VarNm = stinft.Properties.VariableNames;
Vals = stinft{1,:};
VarNms = string(VarNm);
figure
step(sys)
text(mean(xlim), min(ylim)+mean(ylim)*0.1, compose('%s = %7.3f', [string(VarNm); Vals].'), 'Horiz','left','Vert','bottom', 'Interpreter','latex' )
.

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