code running for infinite while plotting my array for correlation

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Bob 2019-3-24

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https://ww2.mathworks.cn/matlabcentral/answers/452001-code-running-for-infinite-while-plotting-my-array-for-correlation

评论： Bob 2019-4-12

采纳的回答： BERGHOUT Tarek

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Hi,

I have problem as my code running for infinite time while I am plotting my arrays to achive coeffcient correlation.

here is my code:

for i=1:length(A)-300     
    Rx{i}= corrcoef(A (i:i+300), S(i:i+300));
    Time_Rx=i;
    B{1,i} = Rx(i)
    C{1,i} = Time_Rx
end

(Aiming for plot Rx as a function over time)

plotting by using:

plot(B,C);

Can not figure out what is wrong, Any help would be appriciable.

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Jan 2019-4-11

[MOVED from flags] Bob wrote:

Worked well.

@Bob: Please use flags only to informa admins about inappropriate contents like rudeness or spam. Thanks.

Bob 2019-4-12

Hi Walter,

How can I avraged my data (A anS) in minutes (for 10 minutes) before I do correlation calculation, in above code ??

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采纳的回答

BERGHOUT Tarek 2019-4-6

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https://ww2.mathworks.cn/matlabcentral/answers/452001-code-running-for-infinite-while-plotting-my-array-for-correlation#answer_369316

编辑：BERGHOUT Tarek 2019-4-6

在 MATLAB Online 中打开

if you want to plot Rx , then you should plot B not C, and you can't plot B vs C in this example because C and B they dont have the same length ( dimensions are not the same), try this code , I hope that it is helpful:

clear all;
clc;
%%%
t=1:600;
A=0.25;
B=1.25;
f1=0.5;
f2=0.025;
S=A*sin(f1*t)+B*cos(f2*t)+wgn(size(t,1),size(t,2),3);
A=S+randn(size(S));
%%%
B=[];
for i=1:length(A)-300     
    Rx=corrcoef(A (i:i+300), S(i:i+300));
    B=[B Rx];
end
plot(1:size(B,2),B);