Mercurial > hg > camir-aes2014

annotate toolboxes/FullBNT-1.0.7/bnt/CPDs/@tabular_decision_node/Old/tabular_decision_node.m @ 0:e9a9cd732c1e tip

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
first hg version after svn
author wolffd
date Tue, 10 Feb 2015 15:05:51 +0000
parents
children
rev   line source
wolffd@0 1 function CPD = tabular_decision_node(sz, CPT)
wolffd@0 2 % TABULAR_DECISION_NODE Represent the randomized policy over a discrete decision/action node as a table
wolffd@0 3 % CPD = tabular_decision_node(sz, CPT)
wolffd@0 4 %
wolffd@0 5 % sz(1:end-1) is the sizes of the parents, sz(end) is the size of this node
wolffd@0 6 % By default, CPT is set to the uniform random policy
wolffd@0 7
wolffd@0 8 if nargin==0
wolffd@0 9 % This occurs if we are trying to load an object from a file.
wolffd@0 10 CPD = init_fields;
wolffd@0 11 CPD = class(CPD, 'tabular_decision_node');
wolffd@0 12 return;
wolffd@0 13 elseif isa(sz, 'tabular_decision_node')
wolffd@0 14 % This might occur if we are copying an object.
wolffd@0 15 CPD = sz;
wolffd@0 16 return;
wolffd@0 17 end
wolffd@0 18 CPD = init_fields;
wolffd@0 19
wolffd@0 20 if nargin < 2
wolffd@0 21 CPT = mk_stochastic(myones(sz));
wolffd@0 22 else
wolffd@0 23 CPT = myreshape(CPT, sz);
wolffd@0 24 end
wolffd@0 25
wolffd@0 26 CPD.CPT = CPT;
wolffd@0 27 CPD.size = sz;
wolffd@0 28
wolffd@0 29 CPD = class(CPD, 'tabular_decision_node');
wolffd@0 30
wolffd@0 31 %%%%%%%%%%%
wolffd@0 32
wolffd@0 33 function CPD = init_fields()
wolffd@0 34 % This ensures we define the fields in the same order
wolffd@0 35 % no matter whether we load an object from a file,
wolffd@0 36 % or create it from scratch. (Matlab requires this.)
wolffd@0 37
wolffd@0 38 CPD.CPT = [];
wolffd@0 39 CPD.size = [];