mad

mad — mean absolute deviation

Calling sequence

s2=mad(x)  
s2=mad(x,'r') or s2=mad(x,1)  
s2=mad(x,'c') or s2=mad(x,2)

`x`	: real or complex vector or matrix

This function computes the mean absolute deviation of a real or complex vector or matrix x .

For a vector or matrix x , s2=mad(x) returns in scalar s2 the mean absolute deviation of all the entries of x .

s2=mad(x,'r') (or, equivalently, s2=mad(x,1)) returns in each entry of the column vector s2 the mean absolute deviation of each column of x .

s2=mad(x,'c') (or, equivalently, s2=mad(x,2)) returns in each entry of the column vector s2 the mean absolute deviation of each row of x .

Reference: Wonacott T.H.& Wonacott R.J. .- Introductory Statistics, 5th edition, John Wiley, 1990.