How to calculate the difference of means?

Question

Sameer 2015-10-12

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https://ww2.mathworks.cn/matlabcentral/answers/248172-how-to-calculate-the-difference-of-means

评论： Sameer 2015-10-13

Hello all,

I have a signal and from that signal I want to calculate the difference of means i.e mean of vaues from time step X to Y minus the mean of values from time step 1 to X-1. And it should do it continously as my simulation runs for Infinite time.

It would be great if you guys can suggest some ways or methods through which I can achieve my goal.

Thanking you in anticipation!

Regards

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Answer 1

Thorsten 2015-10-12

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https://ww2.mathworks.cn/matlabcentral/answers/248172-how-to-calculate-the-difference-of-means#answer_195663

在 MATLAB Online 中打开

mean(data(x:y)) - mean(data(1:x-1))

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Sameer 2015-10-13

Thanks a lot for replying. But I guess I was not crystal clear in my question. Let me allow to explain the situation.

I am getting a signal as input in my simulink model, now what I have to do is to calculate the differnce of means of that signal in the following manner:

now my challange is to collect the signal values for lets say 100 steps and then calculate the mean from 50 to 100 steps as well as the mean from 1 to 50 step.

Hoping to hear from you.

Regards

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