vecr.m

来自「计量工具箱」· M 代码 · 共 30 行

function v = vecr(x)
% PURPOSE: creates a column vector by stacking rows of x
%----------------------------------------------------------
% USAGE:  v = vecr(x)
% where:  x = an input matrix
%---------------------------------------------------------
% RETURNS:
%         v = output vector containing stacked rows of x
%----------------------------------------------------------

% written by: James P. LeSage 2/98
% University of Toledo
% Department of Economics
% Toledo, OH 43606
% [e-mail]

% Thanks to [e-mail]
% for suggesting an improvement in this function


  if (nargin ~= 1)
  error('Wrong # of arguments to vecr'); 
  end 
  
xt = x';
v = xt(:);