From 8070dc963753142bb86c4ed698d91fd623ed28e7 Mon Sep 17 00:00:00 2001
From: ziejd2
Date: Thu, 28 Sep 2017 15:04:40 -0500
Subject: BNW using Octave instead of Matlab.

This version of BNW should perform the same as the original version. The only difference is that it uses Octave instead of Matlab when running BayesNet Toolbox during parameter learning.

I am calling this BNW_1.02. It can be accessed at:
compbio.uthsc.edu/BNW_1.02
---
 sourcecodes/bnt-master/SLP/misc/gener_MCAR_net.m | 165 +++++++++++++++++++++++
 1 file changed, 165 insertions(+)
 create mode 100644 sourcecodes/bnt-master/SLP/misc/gener_MCAR_net.m

(limited to 'sourcecodes/bnt-master/SLP/misc/gener_MCAR_net.m')

diff --git a/sourcecodes/bnt-master/SLP/misc/gener_MCAR_net.m b/sourcecodes/bnt-master/SLP/misc/gener_MCAR_net.m
new file mode 100644
index 00000000..5e852a23
--- /dev/null
+++ b/sourcecodes/bnt-master/SLP/misc/gener_MCAR_net.m
@@ -0,0 +1,165 @@
+function bnet_miss = gener_MCAR_net(bnet_orig, base_proba)
+% function bnet_miss = gener_MCAR_net(bnet_orig, base_proba)
+% 
+%   bnet_orig : a bnet
+%   base_proba :  a probability for value to be missing
+%
+%   bnet_miss : a bnet that could be used in gener_data_from_bnet_miss function
+%               to generate incomplete MCAR dataset
+%
+% Francois.Olivier.C.H@gmail.com
+
+%%%%%%%%%%%% INIT
+%bnet_miss = gener_MCAR_net(bnet_orig, base_proba, upd, bnet_biss)
+%if nargin<4, upd = 0; else upd = 1; end
+%if nargin<3, manual = 0; end
+if nargin<2, error('Not enougth arguments'); end
+
+% création du réseau
+dag = bnet_orig.dag;
+N = size(dag,2);
+ns = bnet_orig.node_sizes;
+
+%if nargin<4,
+  ns_miss = zeros(1,3*N);
+  ns_miss(1:N) = ns;
+  ns_miss(N+1:2*N) = 2*ones(1,N); % 1= node i-N present, 2= node i-N missing
+  ns_miss(2*N+1:3*N) = ns+1; % 1:ns, absent
+
+  dag_miss = zeros(3*N,3*N);
+  dag_miss(1:N,1:N) = dag;
+  dag_miss(N+1:2*N,N+1:2*N)=mk_rnd_dag(N,N-ceil(rand*N/2)); %dag_miss(N+1:2*N,N+1:2*N)=mk_rnd_dag(N,2);
+  for i=1:N, dag_miss(i,2*N+i)=1; dag_miss(N+i,2*N+i)=1; end
+
+  bnet_miss = mk_bnet(dag_miss, ns_miss);
+  CPT = CPT_from_bnet(bnet_orig, 0);
+  for i=1:N
+    bnet_miss.CPD{i} = tabular_CPD (bnet_miss, i, CPT{i});
+  end
+
+  % CPD of nodes M
+  for i=1:N,
+     if find(bnet_miss.order==i)<find(bnet_miss.order==N+i),
+        CPT_M=[];
+        for j=1:ns_miss(i), for l=1:ns_miss(N+i), for k=1:ns_miss(2*N+i),
+          CPT_M=[CPT_M (((j==k)&(l==1))|((k==ns_miss(2*N+i))&(l==2)))];
+        end, end, end
+     else 
+        CPT_M=[];
+        for k=1:ns_miss(2*N+i), for l=1:ns_miss(N+i), for j=1:ns_miss(i), 
+          CPT_M=[CPT_M (((j==k)&(l==1))|((k==ns_miss(2*N+i))&(l==2)))];
+        end, end, end
+     end
+     bnet_miss.CPD{2*N+i} = tabular_CPD (bnet_miss, 2*N+i, CPT_M);
+  end
+%  else
+%    ns_miss = bnet_miss.node_sizes;
+%    dag_miss = bnet_miss.dag;
+%  end
+
+%%%%%%%%%%%% Base probability of missing value
+p = base_proba;
+ for i=1:N
+  fam = find(dag_miss(:,N+i)==1)';
+  semisize = prod(ns_miss(fam)); % as node N+i is binary to say i is present or missing
+  CPT = zeros(1,2*semisize);
+  CPT(1:semisize) = 1-p;
+  CPT(semisize+1:2*semisize) = p;
+  bnet_miss.CPD{N+i} = tabular_CPD (bnet_miss, N+i, CPT);
+ end
+
+%  if manual, % manual generation
+%  
+%  if upd==1;
+%  
+%   fprintf('Base probability of a data to be missing is %1.4f',base_proba);
+%  
+%   b=-1;
+%   while ~(b==0 | b==1), b = input('Would you like to change a probability of a node to be missing (1 for yes, 0 for no) ?   '); end
+%  
+%   %%%%%%%%%%%% Update CPT with MCAR process
+%   while b
+%    fprintf('Nodes are from 1 to %d. ',N);
+%    i=0;
+%    while i<1 | i>N | round(i)~=i, i = input('Which node ?   '); end
+%    fam = find(dag(:,i)==1)'; 
+%    fam_miss = find(dag_miss(:,N+i)==1)';
+%    cas = -ones(1, length(fam_miss)+1);
+%    familly = [fam_miss, N+i];
+%        p=-1;
+%        while p<0 | p>1, p = input(' - A priori probability for this node to be missing ?   ');end
+%        semisize = prod(ns_miss(fam_miss));
+%        CPT = zeros(1,2*semisize);
+%        CPT(1:semisize) = 1-p;
+%        CPT(semisize+1:2*semisize) = p;
+%        bnet_miss.CPD{N+i} = tabular_CPD (bnet_miss, N+i, CPT);
+%    b=-1;
+%    while ~(b==0 | b==1), b = input('Would you like to change a probability of a node to be missing (1 for yes, 0 for no) ?   ');end
+%   end
+%  end
+%  
+%  
+%  else % automatic generation
+
+%%%%%%%%%%%% creating BETAs
+%      %% To use multiple of 5 percent in probs
+%      if N<=25,
+%          BETA = gener_problist(base_proba, N);
+%      else
+%          nboucles = floor(N/25);
+%          BETA = [];
+%          for i=1:nboucles
+%              BETA1 = gener_problist(base_proba, 25);
+%              BETA = [BETA, BETA1];
+%          end
+%          nreste = rem(N,25);
+%          BETA1 = gener_problist(base_proba, nreste);
+%          BETA = [BETA, BETA1];
+%      end
+   BETA = gener_discrete_dist(N, base_proba);
+
+   order=[];
+   missdagtmp = bnet_miss.dag(N+1:2*N,N+1:2*N);
+   unprocessed = 1:N;
+   while ~isempty(unprocessed)
+     npar=[];
+     for i=1:N, npar(end+1)=length(parents(missdagtmp,i));end,
+     [npar, ord] = sort(npar);
+     while ~ismember(ord(1),unprocessed)
+       ord=ord(2:end);
+     end
+     order = [order, ord(1)];
+     missdagtmp(ord(1),:)=0;
+     unprocessed = mysetdiff(unprocessed,ord(1));
+   end
+
+%%%%%%%%%%%% Update CPT with MCAR process
+for i=1:length(BETA)
+  fam_miss = find(dag_miss(:,N+order(i))==1)';
+  p=BETA(i);
+  semisize = prod(ns_miss(fam_miss));
+
+  if isempty(fam_miss),
+        CPT = zeros(1,2*semisize);
+        CPT(1:semisize) = 1-p;
+        CPT(semisize+1:2*semisize) = p;
+        bnet_miss.CPD{N+order(i)} = tabular_CPD (bnet_miss, N+order(i), CPT);
+  else
+
+    %node = N+order(i)
+    %for k=1:semisize
+    %  XI(k) = eval_xi(bnet_miss, N+order(i), k);
+    %  %XI(k+semisize)=1-XI(k);
+    %end
+    %MUi1 = zeros(1,semisize);
+    %MUi1 = gener_mu(p, semisize, XI);
+
+        MUi1k = gener_discrete_dist(semisize, p);
+        CPT = zeros(1,2*semisize);
+        CPT(1:semisize) = 1-MUi1k;
+        CPT(semisize+1:2*semisize) = MUi1k;
+        bnet_miss.CPD{N+order(i)} = tabular_CPD (bnet_miss, N+order(i), CPT);
+
+  end
+% end
+end
\ No newline at end of file
-- 
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