Calculating rms for a matrix

I have a matrix (21*394) and i need to find a rms for it. i am getting a matrix as a coloumn matrix but i need a row matrix.How can i do that

[David Hill]

Do you need the rms for each column or for each row?

[Faiz Khan]

For each row

[Faiz Khan]

Can un pls respond how should i do that

Answer 1

[Adam Danz]

Check out the 2nd input to, y = rms(x,dim)

[Faiz Khan]

WHAT SHOULD BE DIM

[Faiz Khan]

could you explain me in detail

[Adam Danz]

Click the link in my answer. Read about 'dim' (link below takes you directly to "dim").

https://www.mathworks.com/help/signal/ref/rms.html#d120e133145

Dim specifies which dimension (columns, rows, etc.) Try dim=1 and dim=2 to see what it does.

Answer 2

[David Hill]

If you have the signal processing toolbox, it is as easy as:

y=rms(x,2);

If you don't, you can calculate manually.

y=sqrt(sum(x.^2,2)/size(x,2));

[Faiz Khan]

Tq