Characteristics of a step response plot

Hi,

I tried getting the rise time and %overshoot from a step response by right clicking and viewing the characteristics. But when I right click on the figure, I don't get anything. Could someone please help me with this.

Answer 1

[Chandrasekhar]

i think this could be helpful http://www.mathworks.in/help/control/ref/stepinfo.html

http://www.mathworks.in/help/control/ref/stepplot.html

[Priya]

Thank you, I tried this, but getting some error. Since I may not have defined the y , yfinal correctly. Please tell me what are these y, t, yfinal of a system

[Chandrasekhar]

y is the initial value of y, yfinal is the final value of y. t is the time at which the y value changes to yfinal.

If you have a tranfer function then you have to use

S = stepinfo(sys)

[Priya]

Please help me in using the stepinfo for a state space system.

[Walter Roberson]

Sure. It is

S = stepinfo(sys);

where sys is your state space variable, perhaps produced by ss()

[Ibrahim Nayfeh]

the link doesnt work, the page doesnt exist anymore apparently

[Sam Chak]

@Ibrahim Nayfeh, you can search for the function name like this: