MEAN AND ROOT MEAN SQUARE

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OGUNGBEMI Ezekiel 2021-8-11

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https://ww2.mathworks.cn/matlabcentral/answers/896627-mean-and-root-mean-square

评论： DGM 2021-8-12

Hi Everyone, I need your kind and Urgent assistance on my Phd work on Root Mean Square. The code i wrote is writting error.

clear all; close all; clc; %RMS%

V=1;

ch=0.2;

Y=0.5;

q1=0;

q2=0;

p1=0.2;

E=0.2;

p2=sqrt(2*E- p1^2);

dt=1/5;

fs=1/dt;

tspan=100:dt:1000;

K=[0 0.01 0.021 0.022790 1.5];

m=length(K);

for c=1:m;

[t{c},x{c}]=ode23tb(@(t,x)TH(t,x,ch,V,Y,K(c)),tspan,[q1 q2 p1 p2]);

end

Y=x{:,1};

Z=x{:,2};

P=x{:,3};

T=x{:,4};

G=x{:,5};

L=length(tspan);

f = (0:L-1)*(fs);

rms1 = sqrt(mean((Y(:,1)).^2));

rms2 = sqrt(mean((Y(:,2)).^2));

figure

plot(t,rms1);

hold on

plot(t,rms2)

xlabel('t');

ylabel('x1,x2');%ylim([-1 1]);

THIS IS THE ERROR AM GETTING

Error in Untitled2 (line 29)

plot(t,rms1);

THANKS IN ANTICIPATION.

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DGM 2021-8-12

The error you posted should have said more than that. Paste the whole error message. Given that variables are missing, nobody can run this code.

What are the size of t and rms1?

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Answer 1

tiwwexx 2021-8-11

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https://ww2.mathworks.cn/matlabcentral/answers/896627-mean-and-root-mean-square#answer_765132

I don't think that matlab likes that you're using curly brackets. Try changing all { } to ( ).

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