Getting average of sections of a single row of data

Question

David 2013-8-11

0
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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/84490-getting-average-of-sections-of-a-single-row-of-data

Hi everyone,

I have a single row of data and I am trying to get the mean of a number of different ranges within it i.e t average of the data within the ranges (1:20), (103:130), (229:259), (351:386), (482:512), (612:641). This is my attempt:

Average=mean(Seg1.P_wave(1:20,103:130,229:259,351:386,482:512,612:641));

However, this returns an error stating that the index exceeds the matrix dimensions even though the matrix contains 747 elements. Does anyone know what I am doing wrong?

Thanks

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Answer 1

Azzi Abdelmalek 2013-8-11

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链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/84490-getting-average-of-sections-of-a-single-row-of-data#answer_94054

编辑：Azzi Abdelmalek 2013-8-11

在 MATLAB Online 中打开

m1=mean(Seg1.P_wave(1:20));
m2=mean(Seg1.P_wave(103:130));
m3=mean(Seg1.P_wave(229:259));
m4=mean(Seg1.P_wave(351:386));
m5=mean(Seg1.P_wave (482:512));
m6=mean(Seg1.P_wave (612:641));
out=[m1 m2 m3 m4 m5 m6]

%or you want

mean(Seg1.P_wave([1:20,103:130,229:259,351:386,482:512,612:641]));