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).