mean absolute deviation
s2 = mad(x) s2 = mad(x, orientation)
real or complex vector or matrix
index of the dimension along which the mad is computed. It can be either
"*"
(default), "r"
or
"c"
real or complex scalar or vector
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)
or 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.