


% -*- texinfo -*-
% @deftypefn {Function File} {} center (@var{x})
% @deftypefnx {Function File} {} center (@var{x}, @var{dim})
% If @var{x} is a vector, subtract its mean.
% If @var{x} is a matrix, do the above for each column.
% If the optional argument @var{dim} is given, perform the above
% operation along this dimension
% @end deftypefn