how to use multiple graphs such as insert step and step response in a graph as shown in image?

Question

mms79 2014-8-25

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链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/152286-how-to-use-multiple-graphs-such-as-insert-step-and-step-response-in-a-graph-as-shown-in-image

评论： Star Strider 2014-8-25

I am using this code

L=0:25;
T=[2 2.25 2.48 3.15 3.35 4.07 4.36 5.09 5.45 6.20 6.56 7.38 8.25 9.10 10.04 10.58 12.30 13.45 15.06 16.58 19.00 22.00 25.15 31.15 39.0 60.0];
plot(T,L);
grid;

Please suggest Regards MMS79

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Answer 1

Star Strider 2014-8-25

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链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/152286-how-to-use-multiple-graphs-such-as-insert-step-and-step-response-in-a-graph-as-shown-in-image#answer_149781

在 MATLAB Online 中打开

It looks as though your step input plot starts at the second value of your time vector and reached a value of 20 from there on, this works:

L=0:25;
T=[2 2.25 2.48 3.15 3.35 4.07 4.36 5.09 5.45 6.20 6.56 7.38 8.25 9.10 10.04 10.58 12.30 13.45 15.06 16.58 19.00 22.00 25.15 31.15 39.0 60.0];
S = [0 ones(1,size(L,2)-1)*20];
plot(T,L);
hold on
plot(T,S, '-k', 'LineWidth',2)
hold off
grid;

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mms79 2014-8-25

Thanks a lot, it work, I got exactly what required, only the thing is, now its origin is at 2, i require from 0. Regards mms79

Star Strider 2014-8-25

在 MATLAB Online 中打开

This seems to do what you want:

L=0:25;
T=[2 2.25 2.48 3.15 3.35 4.07 4.36 5.09 5.45 6.20 6.56 7.38 8.25 9.10 10.04 10.58 12.30 13.45 15.06 16.58 19.00 22.00 25.15 31.15 39.0 60.0];
ST = [0 linspace(0,60,size(T,2)-1)];
S = [0 ones(1,size(L,2)-1)*20];
plot(T,L);
hold on
plot(ST,S, '-k', 'LineWidth',2)
hold off
grid;