/*

  Compute empirical mean & covariance of (weighted) data

  
  usage: [Smean , Pcov] = part_moment(S , w);
  -----

  Inputs
  ------

  S             Data (d x N)
  w             weights (1 x N)


  Ouputs
  -------

  Smean         Mean vector (d x 1)
  Pcov          Covariance matrix (d x d)


   To compile
  -----------
 
	  
mex  -output part_moment.dll part_moment.c

mex -f mexopts_intel10amd.bat -output part_moment.dll part_moment.c


  Author : S閎astien PARIS