function c = horzcat(a, b)% HORZCAT concatenate two probdist objects horizontally%% Arrays of probdists are made by composing such arrays of respective% expectations and variances.% Copyright (C) 1999-2000 Antti Honkela, Harri Valpola,% and Xavier Giannakopoulos.%% This package comes with ABSOLUTELY NO WARRANTY; for details% see License.txt in the program package.  This is free software,% and you are welcome to redistribute it under certain conditions;% see License.txt for details.if (nargin == 1)  c = a;else  c = probdist([a.expection b.expection], [a.variance b.variance]);end