Rms calculation of specific rows

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mehtap agirsoy
mehtap agirsoy 2021-6-13
评论： mehtap agirsoy 2021-6-13
I'd like to calculate rms of 3rd and 4th columns of a 21600x4 matrix (filedata{i}) but I couldn't do it. If you have any idea about how to do I'll be appreciate it. Thanks in advance.
M_Rms(:,:,i)= rms(filedata{i},3);

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回答（1 个）

Scott MacKenzie
Scott MacKenzie 2021-6-13
编辑：Scott MacKenzie 2021-6-13
The rms of the data in column 3 in the matrix filedata is
rms(filedata{:,3})
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mehtap agirsoy
mehtap agirsoy 2021-6-13
Thanks Scott.I've tried:
A=rms(filedata{i}(:,3:4,i),3);
M_Rms(:,:,i)=[filedata{i}(:,1:2) A];
but after 7th iteration I get an error :Index in position 3 exceeds array bounds (must not exceed 4). I'm really confused.

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