Find a mean square root velocity of each row in matrix

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Ali Kareem
Ali Kareem 2015-10-23
评论： Star Strider 2015-10-23
I have A 100 by 20 matrix and I want to find a mean square root velocity of each row and divided by a constant C then return the result as a 100 by 1.
Can you help me?
Thank you

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Star Strider
Star Strider 2015-10-23
The rms function is in the Signal Processing Toolbox. This uses built-in MATLAB funcitons:
V = randi(99, 100, 20); % Create Data
C = 100; % Define Constant ‘C’
VrmsC = sqrt(mean(V.^2,2))/C; % RMS Velocity/C
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Ali Kareem
Ali Kareem 2015-10-23
Hi, Thank you for your reply. Please I have data saved in matrix A(100,20) Code will be VrmsC = sqrt(mean(A.^2,2))/C Is that correct? Thanks
Star Strider
Star Strider 2015-10-23
My pleasure.
That is correct, if ‘C’ is a scalar constant.

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更多回答（1 个）

dpb
dpb 2015-10-23
v=rms(x,2)/C; % presuming one C; if per row, the define the column vector and use "./C"
doc rms % for details

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