function [Fited]=DimFit(Data,Dim)
% USAGE:
% [Fited]=DimFit(Data,Dim)
%
% DESCRIPTION:
% Adjust the data dimension to Dim.
% * add and append zeros if data is shorter
% * trim if data is longer
%
% INPUTS:
% Data: a row of column vectors (Matrix)
% Dim: the desired dimenstion (Scalar)
%
% OUTPUT:
% Fited: the data after adjusting the dimension
%
[N l]=size(Data);
if N==Dim
   Fited=Data;
   return;
end

if N>Dim
  halfdiff=floor((N-Dim)/2);
  Fited=Data(halfdiff+1:Dim+halfdiff,:);
else
  halfdiff=ceil((Dim-N)/2);
  Fited=[zeros(halfdiff,l); Data; zeros(Dim-N-halfdiff,l)];
end