mean — mean (row mean, column mean) of vector/matrix entries
y=mean(x) y=mean(x,'r') y=mean(x,'c') y=mean(x,'m')
For a vector or a matrix x
, y=mean(x)
returns
in the scalar y
the mean of all the entries of
x
.
y=mean(x,'r')
(or, equivalently, y=mean(x,1)
)
is the rowwise mean. It returns a row vector: y(j)=
mean(x(:,j))
y=mean(x,'c')
(or, equivalently, y=mean(x,2)
)
is the columnwise mean. It returns a column vector: y(i)=
mean(x(i,:))
y=mean(x,'m')
is the mean along the first non singleton
dimension of x (for compatibility with Matlab).