Find a mean square root velocity of each row in matrix

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

Answer 1

[Star Strider]

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

[Ali Kareem]

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]

My pleasure.

That is correct, if ‘C’ is a scalar constant.

Answer 2

[dpb]

v=rms(x,2)/C;  % presuming one C; if per row, the define the column vector and use "./C"

doc rms % for details

[Ali Kareem]

Thanks.